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Richard Purdie2b97eab2006-10-06 18:32:18 +02001/*
2 * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management
3 *
4 * Copyright 2005 Wolfson Microelectronics PLC.
Liam Girdwoodd3311242008-10-12 13:17:36 +01005 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
Richard Purdie2b97eab2006-10-06 18:32:18 +02006 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
Richard Purdie2b97eab2006-10-06 18:32:18 +020012 * Features:
13 * o Changes power status of internal codec blocks depending on the
14 * dynamic configuration of codec internal audio paths and active
Mark Brown74b8f952009-06-06 11:26:15 +010015 * DACs/ADCs.
Richard Purdie2b97eab2006-10-06 18:32:18 +020016 * o Platform power domain - can support external components i.e. amps and
Liam Girdwood612a3fe2012-02-06 16:05:29 +000017 * mic/headphone insertion events.
Richard Purdie2b97eab2006-10-06 18:32:18 +020018 * o Automatic Mic Bias support
19 * o Jack insertion power event initiation - e.g. hp insertion will enable
20 * sinks, dacs, etc
Liam Girdwood612a3fe2012-02-06 16:05:29 +000021 * o Delayed power down of audio subsystem to reduce pops between a quick
Richard Purdie2b97eab2006-10-06 18:32:18 +020022 * device reopen.
23 *
Richard Purdie2b97eab2006-10-06 18:32:18 +020024 */
25
26#include <linux/module.h>
27#include <linux/moduleparam.h>
28#include <linux/init.h>
Mark Brown9d0624a2011-02-18 11:49:43 -080029#include <linux/async.h>
Richard Purdie2b97eab2006-10-06 18:32:18 +020030#include <linux/delay.h>
31#include <linux/pm.h>
32#include <linux/bitops.h>
33#include <linux/platform_device.h>
34#include <linux/jiffies.h>
Takashi Iwai20496ff2009-08-24 09:40:34 +020035#include <linux/debugfs.h>
Mark Brownf1aac482011-12-05 15:17:06 +000036#include <linux/pm_runtime.h>
Mark Brown62ea8742012-01-21 21:14:48 +000037#include <linux/regulator/consumer.h>
Ola Liljad7e7eb92012-05-24 15:26:25 +020038#include <linux/clk.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090039#include <linux/slab.h>
Richard Purdie2b97eab2006-10-06 18:32:18 +020040#include <sound/core.h>
41#include <sound/pcm.h>
42#include <sound/pcm_params.h>
Liam Girdwoodce6120c2010-11-05 15:53:46 +020043#include <sound/soc.h>
Richard Purdie2b97eab2006-10-06 18:32:18 +020044#include <sound/initval.h>
45
Mark Brown84e90932010-11-04 00:07:02 -040046#include <trace/events/asoc.h>
47
Mark Brownde02d072011-09-20 21:43:24 +010048#define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++;
49
Lars-Peter Clausen57295072013-08-05 11:27:31 +020050static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm,
51 struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink,
52 const char *control,
53 int (*connected)(struct snd_soc_dapm_widget *source,
54 struct snd_soc_dapm_widget *sink));
55static struct snd_soc_dapm_widget *
56snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
57 const struct snd_soc_dapm_widget *widget);
58
Richard Purdie2b97eab2006-10-06 18:32:18 +020059/* dapm power sequences - make this per codec in the future */
60static int dapm_up_seq[] = {
Mark Brown38357ab2009-06-06 19:03:23 +010061 [snd_soc_dapm_pre] = 0,
Mark Brown62ea8742012-01-21 21:14:48 +000062 [snd_soc_dapm_regulator_supply] = 1,
Ola Liljad7e7eb92012-05-24 15:26:25 +020063 [snd_soc_dapm_clock_supply] = 1,
Mark Brown1dd275b2013-10-09 13:56:37 +010064 [snd_soc_dapm_supply] = 2,
65 [snd_soc_dapm_micbias] = 3,
Mark Brownc74184e2012-04-04 22:12:09 +010066 [snd_soc_dapm_dai_link] = 2,
Mark Brown1dd275b2013-10-09 13:56:37 +010067 [snd_soc_dapm_dai_in] = 4,
68 [snd_soc_dapm_dai_out] = 4,
69 [snd_soc_dapm_aif_in] = 4,
70 [snd_soc_dapm_aif_out] = 4,
71 [snd_soc_dapm_mic] = 5,
72 [snd_soc_dapm_mux] = 6,
Mark Brown1dd275b2013-10-09 13:56:37 +010073 [snd_soc_dapm_dac] = 7,
74 [snd_soc_dapm_switch] = 8,
75 [snd_soc_dapm_mixer] = 8,
76 [snd_soc_dapm_mixer_named_ctl] = 8,
77 [snd_soc_dapm_pga] = 9,
78 [snd_soc_dapm_adc] = 10,
79 [snd_soc_dapm_out_drv] = 11,
80 [snd_soc_dapm_hp] = 11,
81 [snd_soc_dapm_spk] = 11,
82 [snd_soc_dapm_line] = 11,
83 [snd_soc_dapm_kcontrol] = 12,
84 [snd_soc_dapm_post] = 13,
Richard Purdie2b97eab2006-10-06 18:32:18 +020085};
Ian Moltonca9c1aa2009-01-06 20:11:51 +000086
Richard Purdie2b97eab2006-10-06 18:32:18 +020087static int dapm_down_seq[] = {
Mark Brown38357ab2009-06-06 19:03:23 +010088 [snd_soc_dapm_pre] = 0,
Lars-Peter Clausen57295072013-08-05 11:27:31 +020089 [snd_soc_dapm_kcontrol] = 1,
90 [snd_soc_dapm_adc] = 2,
91 [snd_soc_dapm_hp] = 3,
92 [snd_soc_dapm_spk] = 3,
93 [snd_soc_dapm_line] = 3,
94 [snd_soc_dapm_out_drv] = 3,
Mark Brown38357ab2009-06-06 19:03:23 +010095 [snd_soc_dapm_pga] = 4,
Lars-Peter Clausenefc77e32013-06-14 13:16:50 +020096 [snd_soc_dapm_switch] = 5,
Mark Brown38357ab2009-06-06 19:03:23 +010097 [snd_soc_dapm_mixer_named_ctl] = 5,
Mark Browne3d4dab2009-06-07 13:08:45 +010098 [snd_soc_dapm_mixer] = 5,
99 [snd_soc_dapm_dac] = 6,
100 [snd_soc_dapm_mic] = 7,
101 [snd_soc_dapm_micbias] = 8,
102 [snd_soc_dapm_mux] = 9,
Mark Brown010ff262009-08-17 17:39:22 +0100103 [snd_soc_dapm_aif_in] = 10,
104 [snd_soc_dapm_aif_out] = 10,
Mark Brown46162742013-06-05 19:36:11 +0100105 [snd_soc_dapm_dai_in] = 10,
106 [snd_soc_dapm_dai_out] = 10,
Mark Brownc74184e2012-04-04 22:12:09 +0100107 [snd_soc_dapm_dai_link] = 11,
Mark Brownc74184e2012-04-04 22:12:09 +0100108 [snd_soc_dapm_supply] = 12,
Mark Brown1dd275b2013-10-09 13:56:37 +0100109 [snd_soc_dapm_clock_supply] = 13,
110 [snd_soc_dapm_regulator_supply] = 13,
111 [snd_soc_dapm_post] = 14,
Richard Purdie2b97eab2006-10-06 18:32:18 +0200112};
113
Mark Brownf9fa2b12014-03-06 16:49:11 +0800114static void dapm_assert_locked(struct snd_soc_dapm_context *dapm)
115{
116 if (dapm->card && dapm->card->instantiated)
117 lockdep_assert_held(&dapm->card->dapm_mutex);
118}
119
Troy Kisky12ef1932008-10-13 17:42:14 -0700120static void pop_wait(u32 pop_time)
Mark Brown15e4c722008-07-02 11:51:20 +0100121{
122 if (pop_time)
123 schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time));
124}
125
Jarkko Nikulafd8d3bc2010-11-09 14:40:28 +0200126static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...)
Mark Brown15e4c722008-07-02 11:51:20 +0100127{
128 va_list args;
Jarkko Nikulafd8d3bc2010-11-09 14:40:28 +0200129 char *buf;
130
131 if (!pop_time)
132 return;
133
134 buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
135 if (buf == NULL)
136 return;
Mark Brown15e4c722008-07-02 11:51:20 +0100137
138 va_start(args, fmt);
Jarkko Nikulafd8d3bc2010-11-09 14:40:28 +0200139 vsnprintf(buf, PAGE_SIZE, fmt, args);
Takashi Iwai9d01df02010-12-22 14:08:40 +0100140 dev_info(dev, "%s", buf);
Mark Brown15e4c722008-07-02 11:51:20 +0100141 va_end(args);
Jarkko Nikulafd8d3bc2010-11-09 14:40:28 +0200142
143 kfree(buf);
Mark Brown15e4c722008-07-02 11:51:20 +0100144}
145
Mark Browndb432b42011-10-03 21:06:40 +0100146static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w)
147{
148 return !list_empty(&w->dirty);
149}
150
Mark Brown492c0a12014-03-06 16:15:48 +0800151static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason)
Mark Browndb432b42011-10-03 21:06:40 +0100152{
Mark Brownf9fa2b12014-03-06 16:49:11 +0800153 dapm_assert_locked(w->dapm);
154
Mark Brown75c1f892011-10-04 22:28:08 +0100155 if (!dapm_dirty_widget(w)) {
156 dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n",
157 w->name, reason);
Mark Browndb432b42011-10-03 21:06:40 +0100158 list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty);
Mark Brown75c1f892011-10-04 22:28:08 +0100159 }
Mark Browndb432b42011-10-03 21:06:40 +0100160}
161
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +0200162/*
163 * dapm_widget_invalidate_input_paths() - Invalidate the cached number of input
164 * paths
165 * @w: The widget for which to invalidate the cached number of input paths
166 *
167 * The function resets the cached number of inputs for the specified widget and
168 * all widgets that can be reached via outgoing paths from the widget.
169 *
170 * This function must be called if the number of input paths for a widget might
171 * have changed. E.g. if the source state of a widget changes or a path is added
172 * or activated with the widget as the sink.
173 */
174static void dapm_widget_invalidate_input_paths(struct snd_soc_dapm_widget *w)
175{
176 struct snd_soc_dapm_widget *sink;
177 struct snd_soc_dapm_path *p;
178 LIST_HEAD(list);
179
180 dapm_assert_locked(w->dapm);
181
182 if (w->inputs == -1)
183 return;
184
185 w->inputs = -1;
186 list_add_tail(&w->work_list, &list);
187
188 list_for_each_entry(w, &list, work_list) {
189 list_for_each_entry(p, &w->sinks, list_source) {
190 if (p->is_supply || p->weak || !p->connect)
191 continue;
192 sink = p->sink;
193 if (sink->inputs != -1) {
194 sink->inputs = -1;
195 list_add_tail(&sink->work_list, &list);
196 }
197 }
198 }
199}
200
201/*
202 * dapm_widget_invalidate_output_paths() - Invalidate the cached number of
203 * output paths
204 * @w: The widget for which to invalidate the cached number of output paths
205 *
206 * Resets the cached number of outputs for the specified widget and all widgets
207 * that can be reached via incoming paths from the widget.
208 *
209 * This function must be called if the number of output paths for a widget might
210 * have changed. E.g. if the sink state of a widget changes or a path is added
211 * or activated with the widget as the source.
212 */
213static void dapm_widget_invalidate_output_paths(struct snd_soc_dapm_widget *w)
214{
215 struct snd_soc_dapm_widget *source;
216 struct snd_soc_dapm_path *p;
217 LIST_HEAD(list);
218
219 dapm_assert_locked(w->dapm);
220
221 if (w->outputs == -1)
222 return;
223
224 w->outputs = -1;
225 list_add_tail(&w->work_list, &list);
226
227 list_for_each_entry(w, &list, work_list) {
228 list_for_each_entry(p, &w->sources, list_sink) {
229 if (p->is_supply || p->weak || !p->connect)
230 continue;
231 source = p->source;
232 if (source->outputs != -1) {
233 source->outputs = -1;
234 list_add_tail(&source->work_list, &list);
235 }
236 }
237 }
238}
239
240/*
241 * dapm_path_invalidate() - Invalidates the cached number of inputs and outputs
242 * for the widgets connected to a path
243 * @p: The path to invalidate
244 *
245 * Resets the cached number of inputs for the sink of the path and the cached
246 * number of outputs for the source of the path.
247 *
248 * This function must be called when a path is added, removed or the connected
249 * state changes.
250 */
251static void dapm_path_invalidate(struct snd_soc_dapm_path *p)
252{
253 /*
254 * Weak paths or supply paths do not influence the number of input or
255 * output paths of their neighbors.
256 */
257 if (p->weak || p->is_supply)
258 return;
259
260 /*
261 * The number of connected endpoints is the sum of the number of
262 * connected endpoints of all neighbors. If a node with 0 connected
263 * endpoints is either connected or disconnected that sum won't change,
264 * so there is no need to re-check the path.
265 */
266 if (p->source->inputs != 0)
267 dapm_widget_invalidate_input_paths(p->sink);
268 if (p->sink->outputs != 0)
269 dapm_widget_invalidate_output_paths(p->source);
270}
271
Lars-Peter Clausen8be4da22014-10-25 17:42:01 +0200272void dapm_mark_endpoints_dirty(struct snd_soc_card *card)
Mark Browne2d32ff2012-08-31 17:38:32 -0700273{
Mark Browne2d32ff2012-08-31 17:38:32 -0700274 struct snd_soc_dapm_widget *w;
275
276 mutex_lock(&card->dapm_mutex);
277
278 list_for_each_entry(w, &card->widgets, list) {
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +0200279 if (w->is_sink || w->is_source) {
Lars-Peter Clausen8be4da22014-10-25 17:42:01 +0200280 dapm_mark_dirty(w, "Rechecking endpoints");
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +0200281 if (w->is_sink)
282 dapm_widget_invalidate_output_paths(w);
283 if (w->is_source)
284 dapm_widget_invalidate_input_paths(w);
285 }
Mark Browne2d32ff2012-08-31 17:38:32 -0700286 }
287
288 mutex_unlock(&card->dapm_mutex);
289}
Lars-Peter Clausen8be4da22014-10-25 17:42:01 +0200290EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty);
Mark Browne2d32ff2012-08-31 17:38:32 -0700291
Richard Purdie2b97eab2006-10-06 18:32:18 +0200292/* create a new dapm widget */
Takashi Iwai88cb4292007-02-05 14:56:20 +0100293static inline struct snd_soc_dapm_widget *dapm_cnew_widget(
Richard Purdie2b97eab2006-10-06 18:32:18 +0200294 const struct snd_soc_dapm_widget *_widget)
295{
Takashi Iwai88cb4292007-02-05 14:56:20 +0100296 return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200297}
298
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200299struct dapm_kcontrol_data {
Lars-Peter Clausencf7c1de2013-07-29 17:13:59 +0200300 unsigned int value;
Lars-Peter Clausen57295072013-08-05 11:27:31 +0200301 struct snd_soc_dapm_widget *widget;
Lars-Peter Clausen5106b922013-07-29 17:14:00 +0200302 struct list_head paths;
Lars-Peter Clausen2c75bdf2013-08-01 14:08:07 +0200303 struct snd_soc_dapm_widget_list *wlist;
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200304};
305
306static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget,
307 struct snd_kcontrol *kcontrol)
308{
309 struct dapm_kcontrol_data *data;
Lars-Peter Clausen57295072013-08-05 11:27:31 +0200310 struct soc_mixer_control *mc;
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200311
Lars-Peter Clausen2c75bdf2013-08-01 14:08:07 +0200312 data = kzalloc(sizeof(*data), GFP_KERNEL);
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200313 if (!data) {
314 dev_err(widget->dapm->dev,
315 "ASoC: can't allocate kcontrol data for %s\n",
316 widget->name);
317 return -ENOMEM;
318 }
319
Lars-Peter Clausen5106b922013-07-29 17:14:00 +0200320 INIT_LIST_HEAD(&data->paths);
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200321
Lars-Peter Clausen57295072013-08-05 11:27:31 +0200322 switch (widget->id) {
323 case snd_soc_dapm_switch:
324 case snd_soc_dapm_mixer:
325 case snd_soc_dapm_mixer_named_ctl:
326 mc = (struct soc_mixer_control *)kcontrol->private_value;
327
328 if (mc->autodisable) {
329 struct snd_soc_dapm_widget template;
330
331 memset(&template, 0, sizeof(template));
332 template.reg = mc->reg;
333 template.mask = (1 << fls(mc->max)) - 1;
334 template.shift = mc->shift;
335 if (mc->invert)
336 template.off_val = mc->max;
337 else
338 template.off_val = 0;
339 template.on_val = template.off_val;
340 template.id = snd_soc_dapm_kcontrol;
341 template.name = kcontrol->id.name;
342
Lars-Peter Clausen2daabd72013-08-30 17:39:33 +0200343 data->value = template.on_val;
344
Lars-Peter Clausen57295072013-08-05 11:27:31 +0200345 data->widget = snd_soc_dapm_new_control(widget->dapm,
346 &template);
347 if (!data->widget) {
348 kfree(data);
349 return -ENOMEM;
350 }
351 }
352 break;
353 default:
354 break;
355 }
356
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200357 kcontrol->private_data = data;
358
359 return 0;
360}
361
362static void dapm_kcontrol_free(struct snd_kcontrol *kctl)
363{
364 struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl);
Lars-Peter Clausen2c75bdf2013-08-01 14:08:07 +0200365 kfree(data->wlist);
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200366 kfree(data);
367}
368
369static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist(
370 const struct snd_kcontrol *kcontrol)
371{
372 struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol);
373
Lars-Peter Clausen2c75bdf2013-08-01 14:08:07 +0200374 return data->wlist;
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200375}
376
377static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol,
378 struct snd_soc_dapm_widget *widget)
379{
380 struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol);
Lars-Peter Clausen2c75bdf2013-08-01 14:08:07 +0200381 struct snd_soc_dapm_widget_list *new_wlist;
382 unsigned int n;
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200383
Lars-Peter Clausen2c75bdf2013-08-01 14:08:07 +0200384 if (data->wlist)
385 n = data->wlist->num_widgets + 1;
386 else
387 n = 1;
388
389 new_wlist = krealloc(data->wlist,
390 sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL);
391 if (!new_wlist)
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200392 return -ENOMEM;
393
Lars-Peter Clausen2c75bdf2013-08-01 14:08:07 +0200394 new_wlist->widgets[n - 1] = widget;
395 new_wlist->num_widgets = n;
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200396
Lars-Peter Clausen2c75bdf2013-08-01 14:08:07 +0200397 data->wlist = new_wlist;
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200398
399 return 0;
400}
401
Lars-Peter Clausen5106b922013-07-29 17:14:00 +0200402static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol,
403 struct snd_soc_dapm_path *path)
404{
405 struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol);
406
407 list_add_tail(&path->list_kcontrol, &data->paths);
Lars-Peter Clausen57295072013-08-05 11:27:31 +0200408
409 if (data->widget) {
410 snd_soc_dapm_add_path(data->widget->dapm, data->widget,
411 path->source, NULL, NULL);
412 }
413}
414
415static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol)
416{
417 struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol);
418
419 if (!data->widget)
420 return true;
421
422 return data->widget->power;
Lars-Peter Clausen5106b922013-07-29 17:14:00 +0200423}
424
425static struct list_head *dapm_kcontrol_get_path_list(
426 const struct snd_kcontrol *kcontrol)
427{
428 struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol);
429
430 return &data->paths;
431}
432
433#define dapm_kcontrol_for_each_path(path, kcontrol) \
434 list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \
435 list_kcontrol)
436
Subhransu S. Prusty5dc0158a2014-09-19 16:46:05 +0530437unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol)
Lars-Peter Clausencf7c1de2013-07-29 17:13:59 +0200438{
439 struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol);
440
441 return data->value;
442}
Subhransu S. Prusty5dc0158a2014-09-19 16:46:05 +0530443EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value);
Lars-Peter Clausencf7c1de2013-07-29 17:13:59 +0200444
445static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol,
446 unsigned int value)
447{
448 struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol);
449
450 if (data->value == value)
451 return false;
452
Lars-Peter Clausen57295072013-08-05 11:27:31 +0200453 if (data->widget)
454 data->widget->on_val = value;
455
Lars-Peter Clausencf7c1de2013-07-29 17:13:59 +0200456 data->value = value;
457
458 return true;
459}
460
Lars-Peter Clauseneee5d7f2013-07-29 17:13:57 +0200461/**
Lars-Peter Clausence0fc932014-06-16 18:13:06 +0200462 * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a
463 * kcontrol
464 * @kcontrol: The kcontrol
465 *
466 * Note: This function must only be used on kcontrols that are known to have
467 * been registered for a CODEC. Otherwise the behaviour is undefined.
468 */
469struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm(
470 struct snd_kcontrol *kcontrol)
471{
472 return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm;
473}
474EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm);
475
476/**
Lars-Peter Clauseneee5d7f2013-07-29 17:13:57 +0200477 * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol
478 * @kcontrol: The kcontrol
479 */
480struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol)
481{
Lars-Peter Clausence0fc932014-06-16 18:13:06 +0200482 return snd_soc_dapm_to_codec(snd_soc_dapm_kcontrol_dapm(kcontrol));
Lars-Peter Clauseneee5d7f2013-07-29 17:13:57 +0200483}
484EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec);
485
Liam Girdwood6c120e12012-02-15 15:15:34 +0000486static void dapm_reset(struct snd_soc_card *card)
487{
488 struct snd_soc_dapm_widget *w;
489
Mark Brownf9fa2b12014-03-06 16:49:11 +0800490 lockdep_assert_held(&card->dapm_mutex);
491
Liam Girdwood6c120e12012-02-15 15:15:34 +0000492 memset(&card->dapm_stats, 0, sizeof(card->dapm_stats));
493
494 list_for_each_entry(w, &card->widgets, list) {
Lars-Peter Clausen39eb5fd2013-07-29 17:14:03 +0200495 w->new_power = w->power;
Liam Girdwood6c120e12012-02-15 15:15:34 +0000496 w->power_checked = false;
Liam Girdwood6c120e12012-02-15 15:15:34 +0000497 }
498}
499
Lars-Peter Clausen94f99c82014-06-16 18:13:01 +0200500static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm)
501{
502 if (!dapm->component)
503 return NULL;
504 return dapm->component->name_prefix;
505}
506
Lars-Peter Clausence0fc932014-06-16 18:13:06 +0200507static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg,
Arun Shamanna Lakshmif7d3c172014-01-14 15:31:54 -0800508 unsigned int *value)
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100509{
Lars-Peter Clausence0fc932014-06-16 18:13:06 +0200510 if (!dapm->component)
Lars-Peter Clausene2c330b2014-04-22 13:23:13 +0200511 return -EIO;
Lars-Peter Clausence0fc932014-06-16 18:13:06 +0200512 return snd_soc_component_read(dapm->component, reg, value);
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100513}
514
Lars-Peter Clausence0fc932014-06-16 18:13:06 +0200515static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm,
Bard Liao34775012014-04-17 20:12:56 +0800516 int reg, unsigned int mask, unsigned int value)
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100517{
Lars-Peter Clausence0fc932014-06-16 18:13:06 +0200518 if (!dapm->component)
Lars-Peter Clausene2c330b2014-04-22 13:23:13 +0200519 return -EIO;
Mark Brownfcf6c5e2014-12-15 13:08:48 +0000520 return snd_soc_component_update_bits(dapm->component, reg,
521 mask, value);
Liam Girdwood49575fb52012-03-06 18:16:19 +0000522}
523
Lars-Peter Clausence0fc932014-06-16 18:13:06 +0200524static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm,
525 int reg, unsigned int mask, unsigned int value)
526{
527 if (!dapm->component)
528 return -EIO;
529 return snd_soc_component_test_bits(dapm->component, reg, mask, value);
530}
531
Mark Browneb270e92013-10-09 13:52:52 +0100532static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm)
533{
Lars-Peter Clausene2c330b2014-04-22 13:23:13 +0200534 if (dapm->component)
535 snd_soc_component_async_complete(dapm->component);
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100536}
537
Mark Brown452c5ea2009-05-17 21:41:23 +0100538/**
539 * snd_soc_dapm_set_bias_level - set the bias level for the system
Mark Browned5a4c42011-02-18 11:12:42 -0800540 * @dapm: DAPM context
Mark Brown452c5ea2009-05-17 21:41:23 +0100541 * @level: level to configure
542 *
543 * Configure the bias (power) levels for the SoC audio device.
544 *
545 * Returns 0 for success else error.
546 */
Mark Browned5a4c42011-02-18 11:12:42 -0800547static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm,
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200548 enum snd_soc_bias_level level)
Mark Brown452c5ea2009-05-17 21:41:23 +0100549{
Mark Browned5a4c42011-02-18 11:12:42 -0800550 struct snd_soc_card *card = dapm->card;
Mark Brown452c5ea2009-05-17 21:41:23 +0100551 int ret = 0;
552
Mark Brown84e90932010-11-04 00:07:02 -0400553 trace_snd_soc_bias_level_start(card, level);
554
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000555 if (card && card->set_bias_level)
Mark Brownd4c60052011-06-06 19:13:23 +0100556 ret = card->set_bias_level(card, dapm, level);
Mark Brown171ec6b2011-06-06 18:15:19 +0100557 if (ret != 0)
558 goto out;
Mark Brown452c5ea2009-05-17 21:41:23 +0100559
Lars-Peter Clausen68f831c2014-06-16 18:13:05 +0200560 if (dapm->set_bias_level)
561 ret = dapm->set_bias_level(dapm, level);
562 else if (!card || dapm != &card->dapm)
Liam Girdwood41231282012-07-06 16:56:16 +0100563 dapm->bias_level = level;
564
Mark Brown171ec6b2011-06-06 18:15:19 +0100565 if (ret != 0)
566 goto out;
567
568 if (card && card->set_bias_level_post)
Mark Brownd4c60052011-06-06 19:13:23 +0100569 ret = card->set_bias_level_post(card, dapm, level);
Mark Brown171ec6b2011-06-06 18:15:19 +0100570out:
Mark Brown84e90932010-11-04 00:07:02 -0400571 trace_snd_soc_bias_level_done(card, level);
572
Mark Brown452c5ea2009-05-17 21:41:23 +0100573 return ret;
574}
575
Mark Brown74b8f952009-06-06 11:26:15 +0100576/* connect mux widget to its interconnecting audio paths */
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200577static int dapm_connect_mux(struct snd_soc_dapm_context *dapm,
Lars-Peter Clausen5fe5b762014-10-25 17:41:58 +0200578 struct snd_soc_dapm_path *path, const char *control_name)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200579{
Lars-Peter Clausen5fe5b762014-10-25 17:41:58 +0200580 const struct snd_kcontrol_new *kcontrol = &path->sink->kcontrol_news[0];
Richard Purdie2b97eab2006-10-06 18:32:18 +0200581 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Lars-Peter Clausen234c0b82014-02-28 08:31:12 +0100582 unsigned int val, item;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200583 int i;
584
Lars-Peter Clausen234c0b82014-02-28 08:31:12 +0100585 if (e->reg != SND_SOC_NOPM) {
Lars-Peter Clausence0fc932014-06-16 18:13:06 +0200586 soc_dapm_read(dapm, e->reg, &val);
Lars-Peter Clausen234c0b82014-02-28 08:31:12 +0100587 val = (val >> e->shift_l) & e->mask;
588 item = snd_soc_enum_val_to_item(e, val);
589 } else {
590 /* since a virtual mux has no backing registers to
591 * decide which path to connect, it will try to match
592 * with the first enumeration. This is to ensure
593 * that the default mux choice (the first) will be
594 * correctly powered up during initialization.
595 */
596 item = 0;
597 }
598
Takashi Iwai9a8d38d2014-02-18 08:11:42 +0100599 for (i = 0; i < e->items; i++) {
Richard Purdie2b97eab2006-10-06 18:32:18 +0200600 if (!(strcmp(control_name, e->texts[i]))) {
Rasmus Villemoes98ad73c2014-10-21 17:01:15 +0200601 path->name = e->texts[i];
Lars-Peter Clausen234c0b82014-02-28 08:31:12 +0100602 if (i == item)
603 path->connect = 1;
604 else
605 path->connect = 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200606 return 0;
607 }
608 }
609
610 return -ENODEV;
611}
612
Lars-Peter Clausen234c0b82014-02-28 08:31:12 +0100613/* set up initial codec paths */
Lars-Peter Clausen5fe5b762014-10-25 17:41:58 +0200614static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i)
Lars-Peter Clausen234c0b82014-02-28 08:31:12 +0100615{
616 struct soc_mixer_control *mc = (struct soc_mixer_control *)
Lars-Peter Clausen5fe5b762014-10-25 17:41:58 +0200617 p->sink->kcontrol_news[i].private_value;
Lars-Peter Clausen234c0b82014-02-28 08:31:12 +0100618 unsigned int reg = mc->reg;
619 unsigned int shift = mc->shift;
620 unsigned int max = mc->max;
621 unsigned int mask = (1 << fls(max)) - 1;
622 unsigned int invert = mc->invert;
623 unsigned int val;
624
625 if (reg != SND_SOC_NOPM) {
Lars-Peter Clausen5fe5b762014-10-25 17:41:58 +0200626 soc_dapm_read(p->sink->dapm, reg, &val);
Lars-Peter Clausen234c0b82014-02-28 08:31:12 +0100627 val = (val >> shift) & mask;
628 if (invert)
629 val = max - val;
630 p->connect = !!val;
631 } else {
632 p->connect = 0;
633 }
634}
635
Mark Brown74b8f952009-06-06 11:26:15 +0100636/* connect mixer widget to its interconnecting audio paths */
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200637static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm,
Richard Purdie2b97eab2006-10-06 18:32:18 +0200638 struct snd_soc_dapm_path *path, const char *control_name)
639{
640 int i;
641
642 /* search for mixer kcontrol */
Lars-Peter Clausen5fe5b762014-10-25 17:41:58 +0200643 for (i = 0; i < path->sink->num_kcontrols; i++) {
644 if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) {
645 path->name = path->sink->kcontrol_news[i].name;
646 dapm_set_mixer_path_status(path, i);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200647 return 0;
648 }
649 }
650 return -ENODEV;
651}
652
Stephen Warrenaf468002011-04-28 17:38:01 -0600653static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm,
Stephen Warren1007da02011-05-26 09:57:33 -0600654 struct snd_soc_dapm_widget *kcontrolw,
Stephen Warrenaf468002011-04-28 17:38:01 -0600655 const struct snd_kcontrol_new *kcontrol_new,
656 struct snd_kcontrol **kcontrol)
657{
658 struct snd_soc_dapm_widget *w;
659 int i;
660
661 *kcontrol = NULL;
662
663 list_for_each_entry(w, &dapm->card->widgets, list) {
Stephen Warren1007da02011-05-26 09:57:33 -0600664 if (w == kcontrolw || w->dapm != kcontrolw->dapm)
665 continue;
Stephen Warrenaf468002011-04-28 17:38:01 -0600666 for (i = 0; i < w->num_kcontrols; i++) {
667 if (&w->kcontrol_news[i] == kcontrol_new) {
668 if (w->kcontrols)
669 *kcontrol = w->kcontrols[i];
670 return 1;
671 }
672 }
673 }
674
675 return 0;
676}
677
Stephen Warren85762e72013-03-29 15:40:10 -0600678/*
679 * Determine if a kcontrol is shared. If it is, look it up. If it isn't,
680 * create it. Either way, add the widget into the control's widget list
681 */
682static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w,
Mark Brown946d92a2013-08-12 23:28:42 +0100683 int kci)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200684{
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +0200685 struct snd_soc_dapm_context *dapm = w->dapm;
Mark Brown12ea2c72011-03-02 18:17:32 +0000686 struct snd_card *card = dapm->card->snd_card;
Mark Brownefb7ac32011-03-08 17:23:24 +0000687 const char *prefix;
Stephen Warren85762e72013-03-29 15:40:10 -0600688 size_t prefix_len;
689 int shared;
690 struct snd_kcontrol *kcontrol;
Stephen Warren85762e72013-03-29 15:40:10 -0600691 bool wname_in_long_name, kcname_in_long_name;
Daniel Macke5092c92014-10-07 13:41:24 +0200692 char *long_name = NULL;
Stephen Warren85762e72013-03-29 15:40:10 -0600693 const char *name;
Daniel Macke5092c92014-10-07 13:41:24 +0200694 int ret = 0;
Mark Brownefb7ac32011-03-08 17:23:24 +0000695
Lars-Peter Clausen94f99c82014-06-16 18:13:01 +0200696 prefix = soc_dapm_prefix(dapm);
Mark Brown3e5ff4d2011-03-09 11:33:09 +0000697 if (prefix)
698 prefix_len = strlen(prefix) + 1;
699 else
700 prefix_len = 0;
701
Stephen Warren85762e72013-03-29 15:40:10 -0600702 shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci],
703 &kcontrol);
704
Stephen Warren85762e72013-03-29 15:40:10 -0600705 if (!kcontrol) {
706 if (shared) {
707 wname_in_long_name = false;
708 kcname_in_long_name = true;
709 } else {
710 switch (w->id) {
711 case snd_soc_dapm_switch:
712 case snd_soc_dapm_mixer:
713 wname_in_long_name = true;
714 kcname_in_long_name = true;
715 break;
716 case snd_soc_dapm_mixer_named_ctl:
717 wname_in_long_name = false;
718 kcname_in_long_name = true;
719 break;
720 case snd_soc_dapm_mux:
Stephen Warren85762e72013-03-29 15:40:10 -0600721 wname_in_long_name = true;
722 kcname_in_long_name = false;
723 break;
724 default:
Stephen Warren85762e72013-03-29 15:40:10 -0600725 return -EINVAL;
726 }
727 }
728
729 if (wname_in_long_name && kcname_in_long_name) {
Stephen Warren85762e72013-03-29 15:40:10 -0600730 /*
731 * The control will get a prefix from the control
732 * creation process but we're also using the same
733 * prefix for widgets so cut the prefix off the
734 * front of the widget name.
735 */
Lars-Peter Clausen2b581072013-05-14 11:05:32 +0200736 long_name = kasprintf(GFP_KERNEL, "%s %s",
Stephen Warren85762e72013-03-29 15:40:10 -0600737 w->name + prefix_len,
738 w->kcontrol_news[kci].name);
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200739 if (long_name == NULL)
Lars-Peter Clausen2b581072013-05-14 11:05:32 +0200740 return -ENOMEM;
Stephen Warren85762e72013-03-29 15:40:10 -0600741
742 name = long_name;
743 } else if (wname_in_long_name) {
744 long_name = NULL;
745 name = w->name + prefix_len;
746 } else {
747 long_name = NULL;
748 name = w->kcontrol_news[kci].name;
749 }
750
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200751 kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name,
Stephen Warren85762e72013-03-29 15:40:10 -0600752 prefix);
Daniel Macke5092c92014-10-07 13:41:24 +0200753 if (!kcontrol) {
754 ret = -ENOMEM;
755 goto exit_free;
756 }
757
Lars-Peter Clausen9356e9d2013-08-01 14:08:06 +0200758 kcontrol->private_free = dapm_kcontrol_free;
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200759
760 ret = dapm_kcontrol_data_alloc(w, kcontrol);
761 if (ret) {
762 snd_ctl_free_one(kcontrol);
Daniel Macke5092c92014-10-07 13:41:24 +0200763 goto exit_free;
Lars-Peter Clausene84357f2013-07-29 17:13:58 +0200764 }
765
Stephen Warren85762e72013-03-29 15:40:10 -0600766 ret = snd_ctl_add(card, kcontrol);
767 if (ret < 0) {
768 dev_err(dapm->dev,
769 "ASoC: failed to add widget %s dapm kcontrol %s: %d\n",
770 w->name, name, ret);
Daniel Macke5092c92014-10-07 13:41:24 +0200771 goto exit_free;
Stephen Warren85762e72013-03-29 15:40:10 -0600772 }
Stephen Warren85762e72013-03-29 15:40:10 -0600773 }
774
Lars-Peter Clausen2c75bdf2013-08-01 14:08:07 +0200775 ret = dapm_kcontrol_add_widget(kcontrol, w);
Daniel Macke5092c92014-10-07 13:41:24 +0200776 if (ret == 0)
777 w->kcontrols[kci] = kcontrol;
Lars-Peter Clausen2c75bdf2013-08-01 14:08:07 +0200778
Daniel Macke5092c92014-10-07 13:41:24 +0200779exit_free:
780 kfree(long_name);
Stephen Warren85762e72013-03-29 15:40:10 -0600781
Daniel Macke5092c92014-10-07 13:41:24 +0200782 return ret;
Stephen Warren85762e72013-03-29 15:40:10 -0600783}
784
785/* create new dapm mixer control */
786static int dapm_new_mixer(struct snd_soc_dapm_widget *w)
787{
788 int i, ret;
789 struct snd_soc_dapm_path *path;
790
Richard Purdie2b97eab2006-10-06 18:32:18 +0200791 /* add kcontrol */
792 for (i = 0; i < w->num_kcontrols; i++) {
Richard Purdie2b97eab2006-10-06 18:32:18 +0200793 /* match name */
794 list_for_each_entry(path, &w->sources, list_sink) {
Richard Purdie2b97eab2006-10-06 18:32:18 +0200795 /* mixer/mux paths name must match control name */
Stephen Warren82cfecd2011-04-28 17:37:58 -0600796 if (path->name != (char *)w->kcontrol_news[i].name)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200797 continue;
798
Lars-Peter Clausen82cd8762011-08-15 20:15:21 +0200799 if (w->kcontrols[i]) {
Lars-Peter Clausen5106b922013-07-29 17:14:00 +0200800 dapm_kcontrol_add_path(w->kcontrols[i], path);
Lars-Peter Clausen82cd8762011-08-15 20:15:21 +0200801 continue;
802 }
803
Mark Brown946d92a2013-08-12 23:28:42 +0100804 ret = dapm_create_or_share_mixmux_kcontrol(w, i);
Stephen Warren85762e72013-03-29 15:40:10 -0600805 if (ret < 0)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200806 return ret;
Mark Brown946d92a2013-08-12 23:28:42 +0100807
808 dapm_kcontrol_add_path(w->kcontrols[i], path);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200809 }
810 }
Stephen Warren85762e72013-03-29 15:40:10 -0600811
812 return 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200813}
814
815/* create new dapm mux control */
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +0200816static int dapm_new_mux(struct snd_soc_dapm_widget *w)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200817{
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +0200818 struct snd_soc_dapm_context *dapm = w->dapm;
Stephen Warren85762e72013-03-29 15:40:10 -0600819 struct snd_soc_dapm_path *path;
Stephen Warrenaf468002011-04-28 17:38:01 -0600820 int ret;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200821
Stephen Warrenaf468002011-04-28 17:38:01 -0600822 if (w->num_kcontrols != 1) {
823 dev_err(dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000824 "ASoC: mux %s has incorrect number of controls\n",
Stephen Warrenaf468002011-04-28 17:38:01 -0600825 w->name);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200826 return -EINVAL;
827 }
828
Lars-Peter Clausenfe5813912013-08-01 18:30:38 +0200829 if (list_empty(&w->sources)) {
Stephen Warren85762e72013-03-29 15:40:10 -0600830 dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name);
831 return -EINVAL;
Stephen Warrenaf468002011-04-28 17:38:01 -0600832 }
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200833
Mark Brown946d92a2013-08-12 23:28:42 +0100834 ret = dapm_create_or_share_mixmux_kcontrol(w, 0);
Stephen Warren85762e72013-03-29 15:40:10 -0600835 if (ret < 0)
836 return ret;
Stephen Warrenfad59882011-04-28 17:37:59 -0600837
Lars-Peter Clausen98407ef2014-10-25 17:41:57 +0200838 list_for_each_entry(path, &w->sources, list_sink) {
839 if (path->name)
840 dapm_kcontrol_add_path(w->kcontrols[0], path);
841 }
Richard Purdie2b97eab2006-10-06 18:32:18 +0200842
Stephen Warrenaf468002011-04-28 17:38:01 -0600843 return 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200844}
845
846/* create new dapm volume control */
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +0200847static int dapm_new_pga(struct snd_soc_dapm_widget *w)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200848{
Mark Browna6c65732010-03-03 17:45:21 +0000849 if (w->num_kcontrols)
Jarkko Nikulaf7d41ae2010-11-09 14:40:27 +0200850 dev_err(w->dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000851 "ASoC: PGA controls not supported: '%s'\n", w->name);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200852
Mark Browna6c65732010-03-03 17:45:21 +0000853 return 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200854}
855
Mark Brown99497882010-05-07 20:24:05 +0100856/* We implement power down on suspend by checking the power state of
857 * the ALSA card - when we are suspending the ALSA state for the card
858 * is set to D3.
859 */
860static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget)
861{
Mark Brown12ea2c72011-03-02 18:17:32 +0000862 int level = snd_power_get_state(widget->dapm->card->snd_card);
Mark Brown99497882010-05-07 20:24:05 +0100863
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000864 switch (level) {
Mark Brown99497882010-05-07 20:24:05 +0100865 case SNDRV_CTL_POWER_D3hot:
866 case SNDRV_CTL_POWER_D3cold:
Mark Brown1547aba2010-05-07 21:11:40 +0100867 if (widget->ignore_suspend)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000868 dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n",
Jarkko Nikulaf7d41ae2010-11-09 14:40:27 +0200869 widget->name);
Mark Brown1547aba2010-05-07 21:11:40 +0100870 return widget->ignore_suspend;
Mark Brown99497882010-05-07 20:24:05 +0100871 default:
872 return 1;
873 }
874}
875
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100876/* add widget to list if it's not already in the list */
877static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list,
878 struct snd_soc_dapm_widget *w)
879{
880 struct snd_soc_dapm_widget_list *wlist;
881 int wlistsize, wlistentries, i;
882
883 if (*list == NULL)
884 return -EINVAL;
885
886 wlist = *list;
887
888 /* is this widget already in the list */
889 for (i = 0; i < wlist->num_widgets; i++) {
890 if (wlist->widgets[i] == w)
891 return 0;
892 }
893
894 /* allocate some new space */
895 wlistentries = wlist->num_widgets + 1;
896 wlistsize = sizeof(struct snd_soc_dapm_widget_list) +
897 wlistentries * sizeof(struct snd_soc_dapm_widget *);
898 *list = krealloc(wlist, wlistsize, GFP_KERNEL);
899 if (*list == NULL) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000900 dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n",
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100901 w->name);
902 return -ENOMEM;
903 }
904 wlist = *list;
905
906 /* insert the widget */
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000907 dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n",
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100908 w->name, wlist->num_widgets);
909
910 wlist->widgets[wlist->num_widgets] = w;
911 wlist->num_widgets++;
912 return 1;
913}
914
Richard Purdie2b97eab2006-10-06 18:32:18 +0200915/*
916 * Recursively check for a completed path to an active or physically connected
917 * output widget. Returns number of complete paths.
918 */
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100919static int is_connected_output_ep(struct snd_soc_dapm_widget *widget,
920 struct snd_soc_dapm_widget_list **list)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200921{
922 struct snd_soc_dapm_path *path;
923 int con = 0;
924
Mark Brown024dc072011-10-09 11:52:05 +0100925 if (widget->outputs >= 0)
926 return widget->outputs;
927
Mark Brownde02d072011-09-20 21:43:24 +0100928 DAPM_UPDATE_STAT(widget, path_checks);
929
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +0200930 if (widget->is_sink && widget->connected) {
931 widget->outputs = snd_soc_dapm_suspend_check(widget);
932 return widget->outputs;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200933 }
934
935 list_for_each_entry(path, &widget->sinks, list_source) {
Mark Browne56235e02011-09-21 18:19:14 +0100936 DAPM_UPDATE_STAT(widget, neighbour_checks);
937
Lars-Peter Clausenc1862c82014-10-25 17:42:00 +0200938 if (path->weak || path->is_supply)
Mark Brownbf3a9e12011-06-13 16:42:29 +0100939 continue;
940
Mark Brown8af294b2013-02-22 17:48:15 +0000941 if (path->walking)
942 return 1;
943
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100944 trace_snd_soc_dapm_output_path(widget, path);
945
Lars-Peter Clausen7ddd4cd2014-10-20 19:36:34 +0200946 if (path->connect) {
Mark Brown8af294b2013-02-22 17:48:15 +0000947 path->walking = 1;
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100948
949 /* do we need to add this widget to the list ? */
950 if (list) {
951 int err;
952 err = dapm_list_add_widget(list, path->sink);
953 if (err < 0) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000954 dev_err(widget->dapm->dev,
955 "ASoC: could not add widget %s\n",
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100956 widget->name);
Mark Brown8af294b2013-02-22 17:48:15 +0000957 path->walking = 0;
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100958 return con;
959 }
960 }
961
962 con += is_connected_output_ep(path->sink, list);
Mark Brown8af294b2013-02-22 17:48:15 +0000963
964 path->walking = 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200965 }
966 }
967
Mark Brown024dc072011-10-09 11:52:05 +0100968 widget->outputs = con;
969
Richard Purdie2b97eab2006-10-06 18:32:18 +0200970 return con;
971}
972
973/*
974 * Recursively check for a completed path to an active or physically connected
975 * input widget. Returns number of complete paths.
976 */
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100977static int is_connected_input_ep(struct snd_soc_dapm_widget *widget,
978 struct snd_soc_dapm_widget_list **list)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200979{
980 struct snd_soc_dapm_path *path;
981 int con = 0;
982
Mark Brown024dc072011-10-09 11:52:05 +0100983 if (widget->inputs >= 0)
984 return widget->inputs;
985
Mark Brownde02d072011-09-20 21:43:24 +0100986 DAPM_UPDATE_STAT(widget, path_checks);
987
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +0200988 if (widget->is_source && widget->connected) {
989 widget->inputs = snd_soc_dapm_suspend_check(widget);
990 return widget->inputs;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200991 }
992
993 list_for_each_entry(path, &widget->sources, list_sink) {
Mark Browne56235e02011-09-21 18:19:14 +0100994 DAPM_UPDATE_STAT(widget, neighbour_checks);
995
Lars-Peter Clausenc1862c82014-10-25 17:42:00 +0200996 if (path->weak || path->is_supply)
Mark Brownbf3a9e12011-06-13 16:42:29 +0100997 continue;
998
Mark Brown8af294b2013-02-22 17:48:15 +0000999 if (path->walking)
1000 return 1;
1001
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001002 trace_snd_soc_dapm_input_path(widget, path);
1003
Lars-Peter Clausen7ddd4cd2014-10-20 19:36:34 +02001004 if (path->connect) {
Mark Brown8af294b2013-02-22 17:48:15 +00001005 path->walking = 1;
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001006
1007 /* do we need to add this widget to the list ? */
1008 if (list) {
1009 int err;
Liam Girdwood90c6ce02012-06-05 19:27:15 +01001010 err = dapm_list_add_widget(list, path->source);
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001011 if (err < 0) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001012 dev_err(widget->dapm->dev,
1013 "ASoC: could not add widget %s\n",
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001014 widget->name);
Mark Brown8af294b2013-02-22 17:48:15 +00001015 path->walking = 0;
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001016 return con;
1017 }
1018 }
1019
1020 con += is_connected_input_ep(path->source, list);
Mark Brown8af294b2013-02-22 17:48:15 +00001021
1022 path->walking = 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +02001023 }
1024 }
1025
Mark Brown024dc072011-10-09 11:52:05 +01001026 widget->inputs = con;
1027
Richard Purdie2b97eab2006-10-06 18:32:18 +02001028 return con;
1029}
1030
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001031/**
1032 * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets.
1033 * @dai: the soc DAI.
1034 * @stream: stream direction.
1035 * @list: list of active widgets for this stream.
1036 *
1037 * Queries DAPM graph as to whether an valid audio stream path exists for
1038 * the initial stream specified by name. This takes into account
1039 * current mixer and mux kcontrol settings. Creates list of valid widgets.
1040 *
1041 * Returns the number of valid paths or negative error.
1042 */
1043int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream,
1044 struct snd_soc_dapm_widget_list **list)
1045{
Lars-Peter Clausen313665b2014-11-04 11:30:58 +01001046 struct snd_soc_card *card = dai->component->card;
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +02001047 struct snd_soc_dapm_widget *w;
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001048 int paths;
1049
1050 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +02001051
1052 /*
1053 * For is_connected_{output,input}_ep fully discover the graph we need
1054 * to reset the cached number of inputs and outputs.
1055 */
1056 list_for_each_entry(w, &card->widgets, list) {
1057 w->inputs = -1;
1058 w->outputs = -1;
1059 }
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001060
Lars-Peter Clausen130897a2014-10-20 19:36:39 +02001061 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001062 paths = is_connected_output_ep(dai->playback_widget, list);
Lars-Peter Clausen130897a2014-10-20 19:36:39 +02001063 else
Liam Girdwoodd298caa2012-06-01 18:03:00 +01001064 paths = is_connected_input_ep(dai->capture_widget, list);
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001065
1066 trace_snd_soc_dapm_connected(paths, stream);
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001067 mutex_unlock(&card->dapm_mutex);
1068
1069 return paths;
1070}
1071
Richard Purdie2b97eab2006-10-06 18:32:18 +02001072/*
Mark Brown62ea8742012-01-21 21:14:48 +00001073 * Handler for regulator supply widget.
1074 */
1075int dapm_regulator_event(struct snd_soc_dapm_widget *w,
1076 struct snd_kcontrol *kcontrol, int event)
1077{
Mark Brownc05b84d2012-09-07 12:57:11 +08001078 int ret;
1079
Mark Browneb270e92013-10-09 13:52:52 +01001080 soc_dapm_async_complete(w->dapm);
1081
Mark Brownc05b84d2012-09-07 12:57:11 +08001082 if (SND_SOC_DAPM_EVENT_ON(event)) {
Lars-Peter Clausende9ba982013-07-29 17:14:01 +02001083 if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) {
Mark Brown8784c772013-01-10 19:33:47 +00001084 ret = regulator_allow_bypass(w->regulator, false);
Mark Brownc05b84d2012-09-07 12:57:11 +08001085 if (ret != 0)
1086 dev_warn(w->dapm->dev,
Charles Keepax30686c32014-02-18 16:05:27 +00001087 "ASoC: Failed to unbypass %s: %d\n",
Mark Brownc05b84d2012-09-07 12:57:11 +08001088 w->name, ret);
1089 }
1090
Liam Girdwooda3cc0562012-03-09 17:20:16 +00001091 return regulator_enable(w->regulator);
Mark Brownc05b84d2012-09-07 12:57:11 +08001092 } else {
Lars-Peter Clausende9ba982013-07-29 17:14:01 +02001093 if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) {
Mark Brown8784c772013-01-10 19:33:47 +00001094 ret = regulator_allow_bypass(w->regulator, true);
Mark Brownc05b84d2012-09-07 12:57:11 +08001095 if (ret != 0)
1096 dev_warn(w->dapm->dev,
Charles Keepax30686c32014-02-18 16:05:27 +00001097 "ASoC: Failed to bypass %s: %d\n",
Mark Brownc05b84d2012-09-07 12:57:11 +08001098 w->name, ret);
1099 }
1100
Liam Girdwooda3cc0562012-03-09 17:20:16 +00001101 return regulator_disable_deferred(w->regulator, w->shift);
Mark Brownc05b84d2012-09-07 12:57:11 +08001102 }
Mark Brown62ea8742012-01-21 21:14:48 +00001103}
1104EXPORT_SYMBOL_GPL(dapm_regulator_event);
1105
Ola Liljad7e7eb92012-05-24 15:26:25 +02001106/*
1107 * Handler for clock supply widget.
1108 */
1109int dapm_clock_event(struct snd_soc_dapm_widget *w,
1110 struct snd_kcontrol *kcontrol, int event)
1111{
1112 if (!w->clk)
1113 return -EIO;
1114
Mark Browneb270e92013-10-09 13:52:52 +01001115 soc_dapm_async_complete(w->dapm);
1116
Mark Brownec029952012-06-04 08:16:20 +01001117#ifdef CONFIG_HAVE_CLK
Ola Liljad7e7eb92012-05-24 15:26:25 +02001118 if (SND_SOC_DAPM_EVENT_ON(event)) {
Fabio Baltieri37c1b922013-04-30 16:09:52 +02001119 return clk_prepare_enable(w->clk);
Ola Liljad7e7eb92012-05-24 15:26:25 +02001120 } else {
Fabio Baltieri37c1b922013-04-30 16:09:52 +02001121 clk_disable_unprepare(w->clk);
Ola Liljad7e7eb92012-05-24 15:26:25 +02001122 return 0;
1123 }
Mark Brownec029952012-06-04 08:16:20 +01001124#endif
Marek Belisko98b3cf12012-07-12 23:00:16 +02001125 return 0;
Ola Liljad7e7eb92012-05-24 15:26:25 +02001126}
1127EXPORT_SYMBOL_GPL(dapm_clock_event);
1128
Mark Brownd8050022011-09-28 18:28:23 +01001129static int dapm_widget_power_check(struct snd_soc_dapm_widget *w)
1130{
Mark Brown9b8a83b2011-10-04 22:15:59 +01001131 if (w->power_checked)
1132 return w->new_power;
1133
Mark Brownd8050022011-09-28 18:28:23 +01001134 if (w->force)
Mark Brown9b8a83b2011-10-04 22:15:59 +01001135 w->new_power = 1;
Mark Brownd8050022011-09-28 18:28:23 +01001136 else
Mark Brown9b8a83b2011-10-04 22:15:59 +01001137 w->new_power = w->power_check(w);
1138
1139 w->power_checked = true;
1140
1141 return w->new_power;
Mark Brownd8050022011-09-28 18:28:23 +01001142}
1143
Mark Browncd0f2d42009-04-20 16:56:59 +01001144/* Generic check to see if a widget should be powered.
1145 */
1146static int dapm_generic_check_power(struct snd_soc_dapm_widget *w)
1147{
1148 int in, out;
1149
Mark Brownde02d072011-09-20 21:43:24 +01001150 DAPM_UPDATE_STAT(w, power_checks);
1151
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001152 in = is_connected_input_ep(w, NULL);
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001153 out = is_connected_output_ep(w, NULL);
Mark Browncd0f2d42009-04-20 16:56:59 +01001154 return out != 0 && in != 0;
1155}
1156
Mark Brown246d0a12009-04-22 18:24:55 +01001157/* Check to see if a power supply is needed */
1158static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)
1159{
1160 struct snd_soc_dapm_path *path;
Mark Brown246d0a12009-04-22 18:24:55 +01001161
Mark Brownde02d072011-09-20 21:43:24 +01001162 DAPM_UPDATE_STAT(w, power_checks);
1163
Mark Brown246d0a12009-04-22 18:24:55 +01001164 /* Check if one of our outputs is connected */
1165 list_for_each_entry(path, &w->sinks, list_source) {
Mark Browna8fdac82011-09-28 18:20:26 +01001166 DAPM_UPDATE_STAT(w, neighbour_checks);
1167
Mark Brownbf3a9e12011-06-13 16:42:29 +01001168 if (path->weak)
1169 continue;
1170
Mark Brown215edda2009-09-08 18:59:05 +01001171 if (path->connected &&
1172 !path->connected(path->source, path->sink))
1173 continue;
1174
Mark Brownf68d7e12011-10-04 22:57:50 +01001175 if (dapm_widget_power_check(path->sink))
1176 return 1;
Mark Brown246d0a12009-04-22 18:24:55 +01001177 }
1178
Mark Brownf68d7e12011-10-04 22:57:50 +01001179 return 0;
Mark Brown246d0a12009-04-22 18:24:55 +01001180}
1181
Mark Brown35c64bc2011-09-28 18:23:53 +01001182static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w)
1183{
1184 return 1;
1185}
1186
Mark Brown38357ab2009-06-06 19:03:23 +01001187static int dapm_seq_compare(struct snd_soc_dapm_widget *a,
1188 struct snd_soc_dapm_widget *b,
Mark Brown828a8422011-01-15 13:14:30 +00001189 bool power_up)
Mark Brown42aa3412009-03-01 19:21:10 +00001190{
Mark Brown828a8422011-01-15 13:14:30 +00001191 int *sort;
1192
1193 if (power_up)
1194 sort = dapm_up_seq;
1195 else
1196 sort = dapm_down_seq;
1197
Mark Brown38357ab2009-06-06 19:03:23 +01001198 if (sort[a->id] != sort[b->id])
1199 return sort[a->id] - sort[b->id];
Mark Brown20e48592011-01-15 13:40:50 +00001200 if (a->subseq != b->subseq) {
1201 if (power_up)
1202 return a->subseq - b->subseq;
1203 else
1204 return b->subseq - a->subseq;
1205 }
Mark Brownb22ead22009-06-07 12:51:26 +01001206 if (a->reg != b->reg)
1207 return a->reg - b->reg;
Mark Brown84dab562010-11-12 15:28:42 +00001208 if (a->dapm != b->dapm)
1209 return (unsigned long)a->dapm - (unsigned long)b->dapm;
Mark Brown42aa3412009-03-01 19:21:10 +00001210
Mark Brown38357ab2009-06-06 19:03:23 +01001211 return 0;
1212}
Mark Brown42aa3412009-03-01 19:21:10 +00001213
Mark Brown38357ab2009-06-06 19:03:23 +01001214/* Insert a widget in order into a DAPM power sequence. */
1215static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget,
1216 struct list_head *list,
Mark Brown828a8422011-01-15 13:14:30 +00001217 bool power_up)
Mark Brown38357ab2009-06-06 19:03:23 +01001218{
1219 struct snd_soc_dapm_widget *w;
1220
1221 list_for_each_entry(w, list, power_list)
Mark Brown828a8422011-01-15 13:14:30 +00001222 if (dapm_seq_compare(new_widget, w, power_up) < 0) {
Mark Brown38357ab2009-06-06 19:03:23 +01001223 list_add_tail(&new_widget->power_list, &w->power_list);
1224 return;
Mark Brown42aa3412009-03-01 19:21:10 +00001225 }
Mark Brown6ea31b92009-04-20 17:15:41 +01001226
Mark Brown38357ab2009-06-06 19:03:23 +01001227 list_add_tail(&new_widget->power_list, list);
1228}
Mark Brown42aa3412009-03-01 19:21:10 +00001229
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001230static void dapm_seq_check_event(struct snd_soc_card *card,
Mark Brown68f89ad2010-11-03 23:51:49 -04001231 struct snd_soc_dapm_widget *w, int event)
1232{
Mark Brown68f89ad2010-11-03 23:51:49 -04001233 const char *ev_name;
1234 int power, ret;
1235
1236 switch (event) {
1237 case SND_SOC_DAPM_PRE_PMU:
1238 ev_name = "PRE_PMU";
1239 power = 1;
1240 break;
1241 case SND_SOC_DAPM_POST_PMU:
1242 ev_name = "POST_PMU";
1243 power = 1;
1244 break;
1245 case SND_SOC_DAPM_PRE_PMD:
1246 ev_name = "PRE_PMD";
1247 power = 0;
1248 break;
1249 case SND_SOC_DAPM_POST_PMD:
1250 ev_name = "POST_PMD";
1251 power = 0;
1252 break;
Mark Brown80114122013-02-25 15:14:19 +00001253 case SND_SOC_DAPM_WILL_PMU:
1254 ev_name = "WILL_PMU";
1255 power = 1;
1256 break;
1257 case SND_SOC_DAPM_WILL_PMD:
1258 ev_name = "WILL_PMD";
1259 power = 0;
1260 break;
Mark Brown68f89ad2010-11-03 23:51:49 -04001261 default:
Takashi Iwaia6ed0602013-11-06 11:07:19 +01001262 WARN(1, "Unknown event %d\n", event);
Mark Brown68f89ad2010-11-03 23:51:49 -04001263 return;
1264 }
1265
Lars-Peter Clausen39eb5fd2013-07-29 17:14:03 +02001266 if (w->new_power != power)
Mark Brown68f89ad2010-11-03 23:51:49 -04001267 return;
1268
1269 if (w->event && (w->event_flags & event)) {
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001270 pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n",
Mark Brown68f89ad2010-11-03 23:51:49 -04001271 w->name, ev_name);
Mark Browneb270e92013-10-09 13:52:52 +01001272 soc_dapm_async_complete(w->dapm);
Mark Brown84e90932010-11-04 00:07:02 -04001273 trace_snd_soc_dapm_widget_event_start(w, event);
Mark Brown68f89ad2010-11-03 23:51:49 -04001274 ret = w->event(w, NULL, event);
Mark Brown84e90932010-11-04 00:07:02 -04001275 trace_snd_soc_dapm_widget_event_done(w, event);
Mark Brown68f89ad2010-11-03 23:51:49 -04001276 if (ret < 0)
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001277 dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n",
Mark Brown68f89ad2010-11-03 23:51:49 -04001278 ev_name, w->name, ret);
1279 }
1280}
1281
Mark Brownb22ead22009-06-07 12:51:26 +01001282/* Apply the coalesced changes from a DAPM sequence */
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001283static void dapm_seq_run_coalesced(struct snd_soc_card *card,
Mark Brownb22ead22009-06-07 12:51:26 +01001284 struct list_head *pending)
Mark Brown163cac02009-06-07 10:12:52 +01001285{
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02001286 struct snd_soc_dapm_context *dapm;
Mark Brown68f89ad2010-11-03 23:51:49 -04001287 struct snd_soc_dapm_widget *w;
Lars-Peter Clausende9ba982013-07-29 17:14:01 +02001288 int reg;
Mark Brownb22ead22009-06-07 12:51:26 +01001289 unsigned int value = 0;
1290 unsigned int mask = 0;
Mark Brownb22ead22009-06-07 12:51:26 +01001291
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02001292 w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list);
1293 reg = w->reg;
1294 dapm = w->dapm;
Mark Brownb22ead22009-06-07 12:51:26 +01001295
1296 list_for_each_entry(w, pending, power_list) {
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02001297 WARN_ON(reg != w->reg || dapm != w->dapm);
Lars-Peter Clausen39eb5fd2013-07-29 17:14:03 +02001298 w->power = w->new_power;
Mark Brownb22ead22009-06-07 12:51:26 +01001299
Lars-Peter Clausende9ba982013-07-29 17:14:01 +02001300 mask |= w->mask << w->shift;
1301 if (w->power)
1302 value |= w->on_val << w->shift;
Mark Brownb22ead22009-06-07 12:51:26 +01001303 else
Lars-Peter Clausende9ba982013-07-29 17:14:01 +02001304 value |= w->off_val << w->shift;
Mark Brownb22ead22009-06-07 12:51:26 +01001305
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02001306 pop_dbg(dapm->dev, card->pop_time,
Mark Brownb22ead22009-06-07 12:51:26 +01001307 "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n",
1308 w->name, reg, value, mask);
Mark Brown81628102009-06-07 13:21:24 +01001309
Mark Brown68f89ad2010-11-03 23:51:49 -04001310 /* Check for events */
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001311 dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU);
1312 dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD);
Mark Brownb22ead22009-06-07 12:51:26 +01001313 }
1314
Mark Brown81628102009-06-07 13:21:24 +01001315 if (reg >= 0) {
Mark Brown29376bc2011-06-19 13:49:28 +01001316 /* Any widget will do, they should all be updating the
1317 * same register.
1318 */
Mark Brown29376bc2011-06-19 13:49:28 +01001319
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02001320 pop_dbg(dapm->dev, card->pop_time,
Mark Brown81628102009-06-07 13:21:24 +01001321 "pop test : Applying 0x%x/0x%x to %x in %dms\n",
Jarkko Nikula3a45b862010-11-05 20:35:21 +02001322 value, mask, reg, card->pop_time);
1323 pop_wait(card->pop_time);
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02001324 soc_dapm_update_bits(dapm, reg, mask, value);
Mark Brown81628102009-06-07 13:21:24 +01001325 }
1326
1327 list_for_each_entry(w, pending, power_list) {
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001328 dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU);
1329 dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD);
Mark Brown42aa3412009-03-01 19:21:10 +00001330 }
Mark Brown42aa3412009-03-01 19:21:10 +00001331}
1332
Mark Brownb22ead22009-06-07 12:51:26 +01001333/* Apply a DAPM power sequence.
1334 *
1335 * We walk over a pre-sorted list of widgets to apply power to. In
1336 * order to minimise the number of writes to the device required
1337 * multiple widgets will be updated in a single write where possible.
1338 * Currently anything that requires more than a single write is not
1339 * handled.
1340 */
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001341static void dapm_seq_run(struct snd_soc_card *card,
1342 struct list_head *list, int event, bool power_up)
Mark Brownb22ead22009-06-07 12:51:26 +01001343{
1344 struct snd_soc_dapm_widget *w, *n;
Mark Browneb270e92013-10-09 13:52:52 +01001345 struct snd_soc_dapm_context *d;
Mark Brownb22ead22009-06-07 12:51:26 +01001346 LIST_HEAD(pending);
1347 int cur_sort = -1;
Mark Brown20e48592011-01-15 13:40:50 +00001348 int cur_subseq = -1;
Mark Brownb22ead22009-06-07 12:51:26 +01001349 int cur_reg = SND_SOC_NOPM;
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001350 struct snd_soc_dapm_context *cur_dapm = NULL;
Mark Brown474b62d2011-01-18 16:14:44 +00001351 int ret, i;
Mark Brown828a8422011-01-15 13:14:30 +00001352 int *sort;
1353
1354 if (power_up)
1355 sort = dapm_up_seq;
1356 else
1357 sort = dapm_down_seq;
Mark Brown163cac02009-06-07 10:12:52 +01001358
Mark Brownb22ead22009-06-07 12:51:26 +01001359 list_for_each_entry_safe(w, n, list, power_list) {
1360 ret = 0;
1361
1362 /* Do we need to apply any queued changes? */
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001363 if (sort[w->id] != cur_sort || w->reg != cur_reg ||
Mark Brown20e48592011-01-15 13:40:50 +00001364 w->dapm != cur_dapm || w->subseq != cur_subseq) {
Mark Brownb22ead22009-06-07 12:51:26 +01001365 if (!list_empty(&pending))
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001366 dapm_seq_run_coalesced(card, &pending);
Mark Brownb22ead22009-06-07 12:51:26 +01001367
Mark Brown474b62d2011-01-18 16:14:44 +00001368 if (cur_dapm && cur_dapm->seq_notifier) {
1369 for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++)
1370 if (sort[i] == cur_sort)
1371 cur_dapm->seq_notifier(cur_dapm,
Mark Brownf85a9e02011-01-26 21:41:28 +00001372 i,
1373 cur_subseq);
Mark Brown474b62d2011-01-18 16:14:44 +00001374 }
1375
Mark Browneb270e92013-10-09 13:52:52 +01001376 if (cur_dapm && w->dapm != cur_dapm)
1377 soc_dapm_async_complete(cur_dapm);
1378
Mark Brownb22ead22009-06-07 12:51:26 +01001379 INIT_LIST_HEAD(&pending);
1380 cur_sort = -1;
Mark Brownb0b3e6f2011-07-16 10:55:08 +09001381 cur_subseq = INT_MIN;
Mark Brownb22ead22009-06-07 12:51:26 +01001382 cur_reg = SND_SOC_NOPM;
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001383 cur_dapm = NULL;
Mark Brownb22ead22009-06-07 12:51:26 +01001384 }
1385
Mark Brown163cac02009-06-07 10:12:52 +01001386 switch (w->id) {
1387 case snd_soc_dapm_pre:
1388 if (!w->event)
Mark Brownb22ead22009-06-07 12:51:26 +01001389 list_for_each_entry_safe_continue(w, n, list,
1390 power_list);
Mark Brown163cac02009-06-07 10:12:52 +01001391
Mark Brownb22ead22009-06-07 12:51:26 +01001392 if (event == SND_SOC_DAPM_STREAM_START)
Mark Brown163cac02009-06-07 10:12:52 +01001393 ret = w->event(w,
1394 NULL, SND_SOC_DAPM_PRE_PMU);
Mark Brownb22ead22009-06-07 12:51:26 +01001395 else if (event == SND_SOC_DAPM_STREAM_STOP)
Mark Brown163cac02009-06-07 10:12:52 +01001396 ret = w->event(w,
1397 NULL, SND_SOC_DAPM_PRE_PMD);
Mark Brown163cac02009-06-07 10:12:52 +01001398 break;
1399
1400 case snd_soc_dapm_post:
1401 if (!w->event)
Mark Brownb22ead22009-06-07 12:51:26 +01001402 list_for_each_entry_safe_continue(w, n, list,
1403 power_list);
Mark Brown163cac02009-06-07 10:12:52 +01001404
Mark Brownb22ead22009-06-07 12:51:26 +01001405 if (event == SND_SOC_DAPM_STREAM_START)
Mark Brown163cac02009-06-07 10:12:52 +01001406 ret = w->event(w,
1407 NULL, SND_SOC_DAPM_POST_PMU);
Mark Brownb22ead22009-06-07 12:51:26 +01001408 else if (event == SND_SOC_DAPM_STREAM_STOP)
Mark Brown163cac02009-06-07 10:12:52 +01001409 ret = w->event(w,
1410 NULL, SND_SOC_DAPM_POST_PMD);
Mark Brownb22ead22009-06-07 12:51:26 +01001411 break;
1412
Mark Brown163cac02009-06-07 10:12:52 +01001413 default:
Mark Brown81628102009-06-07 13:21:24 +01001414 /* Queue it up for application */
1415 cur_sort = sort[w->id];
Mark Brown20e48592011-01-15 13:40:50 +00001416 cur_subseq = w->subseq;
Mark Brown81628102009-06-07 13:21:24 +01001417 cur_reg = w->reg;
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001418 cur_dapm = w->dapm;
Mark Brown81628102009-06-07 13:21:24 +01001419 list_move(&w->power_list, &pending);
1420 break;
Mark Brown163cac02009-06-07 10:12:52 +01001421 }
Mark Brownb22ead22009-06-07 12:51:26 +01001422
1423 if (ret < 0)
Jarkko Nikulaf7d41ae2010-11-09 14:40:27 +02001424 dev_err(w->dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001425 "ASoC: Failed to apply widget power: %d\n", ret);
Mark Brown163cac02009-06-07 10:12:52 +01001426 }
Mark Brownb22ead22009-06-07 12:51:26 +01001427
1428 if (!list_empty(&pending))
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001429 dapm_seq_run_coalesced(card, &pending);
Mark Brown474b62d2011-01-18 16:14:44 +00001430
1431 if (cur_dapm && cur_dapm->seq_notifier) {
1432 for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++)
1433 if (sort[i] == cur_sort)
1434 cur_dapm->seq_notifier(cur_dapm,
Mark Brownf85a9e02011-01-26 21:41:28 +00001435 i, cur_subseq);
Mark Brown474b62d2011-01-18 16:14:44 +00001436 }
Mark Browneb270e92013-10-09 13:52:52 +01001437
1438 list_for_each_entry(d, &card->dapm_list, list) {
1439 soc_dapm_async_complete(d);
1440 }
Mark Brown163cac02009-06-07 10:12:52 +01001441}
1442
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001443static void dapm_widget_update(struct snd_soc_card *card)
Mark Brown97404f22010-12-14 16:13:57 +00001444{
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001445 struct snd_soc_dapm_update *update = card->update;
Lars-Peter Clausence6cfaf2013-07-24 15:27:37 +02001446 struct snd_soc_dapm_widget_list *wlist;
1447 struct snd_soc_dapm_widget *w = NULL;
1448 unsigned int wi;
Mark Brown97404f22010-12-14 16:13:57 +00001449 int ret;
1450
Lars-Peter Clausen57295072013-08-05 11:27:31 +02001451 if (!update || !dapm_kcontrol_is_powered(update->kcontrol))
Mark Brown97404f22010-12-14 16:13:57 +00001452 return;
1453
Lars-Peter Clausene84357f2013-07-29 17:13:58 +02001454 wlist = dapm_kcontrol_get_wlist(update->kcontrol);
Mark Brown97404f22010-12-14 16:13:57 +00001455
Lars-Peter Clausence6cfaf2013-07-24 15:27:37 +02001456 for (wi = 0; wi < wlist->num_widgets; wi++) {
1457 w = wlist->widgets[wi];
1458
1459 if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) {
1460 ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG);
1461 if (ret != 0)
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001462 dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n",
Lars-Peter Clausence6cfaf2013-07-24 15:27:37 +02001463 w->name, ret);
1464 }
Mark Brown97404f22010-12-14 16:13:57 +00001465 }
1466
Lars-Peter Clausence6cfaf2013-07-24 15:27:37 +02001467 if (!w)
1468 return;
1469
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02001470 ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask,
1471 update->val);
Mark Brown97404f22010-12-14 16:13:57 +00001472 if (ret < 0)
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001473 dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n",
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001474 w->name, ret);
Mark Brown97404f22010-12-14 16:13:57 +00001475
Lars-Peter Clausence6cfaf2013-07-24 15:27:37 +02001476 for (wi = 0; wi < wlist->num_widgets; wi++) {
1477 w = wlist->widgets[wi];
1478
1479 if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) {
1480 ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG);
1481 if (ret != 0)
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001482 dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n",
Lars-Peter Clausence6cfaf2013-07-24 15:27:37 +02001483 w->name, ret);
1484 }
Mark Brown97404f22010-12-14 16:13:57 +00001485 }
1486}
1487
Mark Brown9d0624a2011-02-18 11:49:43 -08001488/* Async callback run prior to DAPM sequences - brings to _PREPARE if
1489 * they're changing state.
1490 */
1491static void dapm_pre_sequence_async(void *data, async_cookie_t cookie)
1492{
1493 struct snd_soc_dapm_context *d = data;
1494 int ret;
Mark Brown97404f22010-12-14 16:13:57 +00001495
Mark Brown56fba412011-06-04 11:25:10 +01001496 /* If we're off and we're not supposed to be go into STANDBY */
1497 if (d->bias_level == SND_SOC_BIAS_OFF &&
1498 d->target_bias_level != SND_SOC_BIAS_OFF) {
Mark Brownf1aac482011-12-05 15:17:06 +00001499 if (d->dev)
1500 pm_runtime_get_sync(d->dev);
1501
Mark Brown9d0624a2011-02-18 11:49:43 -08001502 ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY);
1503 if (ret != 0)
1504 dev_err(d->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001505 "ASoC: Failed to turn on bias: %d\n", ret);
Mark Brown9d0624a2011-02-18 11:49:43 -08001506 }
1507
Lars-Peter Clausence85a4d2014-05-06 10:32:15 +02001508 /* Prepare for a transition to ON or away from ON */
1509 if ((d->target_bias_level == SND_SOC_BIAS_ON &&
1510 d->bias_level != SND_SOC_BIAS_ON) ||
1511 (d->target_bias_level != SND_SOC_BIAS_ON &&
1512 d->bias_level == SND_SOC_BIAS_ON)) {
Mark Brown9d0624a2011-02-18 11:49:43 -08001513 ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE);
1514 if (ret != 0)
1515 dev_err(d->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001516 "ASoC: Failed to prepare bias: %d\n", ret);
Mark Brown9d0624a2011-02-18 11:49:43 -08001517 }
1518}
1519
1520/* Async callback run prior to DAPM sequences - brings to their final
1521 * state.
1522 */
1523static void dapm_post_sequence_async(void *data, async_cookie_t cookie)
1524{
1525 struct snd_soc_dapm_context *d = data;
1526 int ret;
1527
1528 /* If we just powered the last thing off drop to standby bias */
Mark Brown56fba412011-06-04 11:25:10 +01001529 if (d->bias_level == SND_SOC_BIAS_PREPARE &&
1530 (d->target_bias_level == SND_SOC_BIAS_STANDBY ||
1531 d->target_bias_level == SND_SOC_BIAS_OFF)) {
Mark Brown9d0624a2011-02-18 11:49:43 -08001532 ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY);
1533 if (ret != 0)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001534 dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n",
Mark Brown9d0624a2011-02-18 11:49:43 -08001535 ret);
1536 }
1537
1538 /* If we're in standby and can support bias off then do that */
Mark Brown56fba412011-06-04 11:25:10 +01001539 if (d->bias_level == SND_SOC_BIAS_STANDBY &&
1540 d->target_bias_level == SND_SOC_BIAS_OFF) {
Mark Brown9d0624a2011-02-18 11:49:43 -08001541 ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF);
1542 if (ret != 0)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001543 dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n",
1544 ret);
Mark Brownf1aac482011-12-05 15:17:06 +00001545
1546 if (d->dev)
Mark Brownfb644e92012-01-25 19:53:58 +00001547 pm_runtime_put(d->dev);
Mark Brown9d0624a2011-02-18 11:49:43 -08001548 }
1549
1550 /* If we just powered up then move to active bias */
Mark Brown56fba412011-06-04 11:25:10 +01001551 if (d->bias_level == SND_SOC_BIAS_PREPARE &&
1552 d->target_bias_level == SND_SOC_BIAS_ON) {
Mark Brown9d0624a2011-02-18 11:49:43 -08001553 ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON);
1554 if (ret != 0)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001555 dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n",
Mark Brown9d0624a2011-02-18 11:49:43 -08001556 ret);
1557 }
1558}
Mark Brown97404f22010-12-14 16:13:57 +00001559
Mark Brownfe4fda52011-10-03 22:36:57 +01001560static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer,
1561 bool power, bool connect)
1562{
1563 /* If a connection is being made or broken then that update
1564 * will have marked the peer dirty, otherwise the widgets are
1565 * not connected and this update has no impact. */
1566 if (!connect)
1567 return;
1568
1569 /* If the peer is already in the state we're moving to then we
1570 * won't have an impact on it. */
1571 if (power != peer->power)
Mark Brown75c1f892011-10-04 22:28:08 +01001572 dapm_mark_dirty(peer, "peer state change");
Mark Brownfe4fda52011-10-03 22:36:57 +01001573}
1574
Mark Brown05623c42011-09-28 17:02:31 +01001575static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power,
1576 struct list_head *up_list,
1577 struct list_head *down_list)
1578{
Mark Browndb432b42011-10-03 21:06:40 +01001579 struct snd_soc_dapm_path *path;
1580
Mark Brown05623c42011-09-28 17:02:31 +01001581 if (w->power == power)
1582 return;
1583
1584 trace_snd_soc_dapm_widget_power(w, power);
1585
Mark Browndb432b42011-10-03 21:06:40 +01001586 /* If we changed our power state perhaps our neigbours changed
Mark Brownfe4fda52011-10-03 22:36:57 +01001587 * also.
Mark Browndb432b42011-10-03 21:06:40 +01001588 */
Lars-Peter Clausen7ddd4cd2014-10-20 19:36:34 +02001589 list_for_each_entry(path, &w->sources, list_sink)
1590 dapm_widget_set_peer_power(path->source, power, path->connect);
1591
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02001592 /* Supplies can't affect their outputs, only their inputs */
1593 if (!w->is_supply) {
Lars-Peter Clausen7ddd4cd2014-10-20 19:36:34 +02001594 list_for_each_entry(path, &w->sinks, list_source)
1595 dapm_widget_set_peer_power(path->sink, power,
1596 path->connect);
Mark Browndb432b42011-10-03 21:06:40 +01001597 }
1598
Mark Brown05623c42011-09-28 17:02:31 +01001599 if (power)
1600 dapm_seq_insert(w, up_list, true);
1601 else
1602 dapm_seq_insert(w, down_list, false);
Mark Brown05623c42011-09-28 17:02:31 +01001603}
1604
Mark Brown7c81beb2011-09-20 22:22:32 +01001605static void dapm_power_one_widget(struct snd_soc_dapm_widget *w,
1606 struct list_head *up_list,
1607 struct list_head *down_list)
1608{
Mark Brown7c81beb2011-09-20 22:22:32 +01001609 int power;
1610
1611 switch (w->id) {
1612 case snd_soc_dapm_pre:
1613 dapm_seq_insert(w, down_list, false);
1614 break;
1615 case snd_soc_dapm_post:
1616 dapm_seq_insert(w, up_list, true);
1617 break;
1618
1619 default:
Mark Brownd8050022011-09-28 18:28:23 +01001620 power = dapm_widget_power_check(w);
Mark Brown7c81beb2011-09-20 22:22:32 +01001621
Mark Brown05623c42011-09-28 17:02:31 +01001622 dapm_widget_set_power(w, power, up_list, down_list);
Mark Brown7c81beb2011-09-20 22:22:32 +01001623 break;
1624 }
1625}
1626
Lars-Peter Clausen86dbf2a2014-09-04 19:44:06 +02001627static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm)
1628{
1629 if (dapm->idle_bias_off)
1630 return true;
1631
1632 switch (snd_power_get_state(dapm->card->snd_card)) {
1633 case SNDRV_CTL_POWER_D3hot:
1634 case SNDRV_CTL_POWER_D3cold:
1635 return dapm->suspend_bias_off;
1636 default:
1637 break;
1638 }
1639
1640 return false;
1641}
1642
Mark Brown42aa3412009-03-01 19:21:10 +00001643/*
Richard Purdie2b97eab2006-10-06 18:32:18 +02001644 * Scan each dapm widget for complete audio path.
1645 * A complete path is a route that has valid endpoints i.e.:-
1646 *
1647 * o DAC to output pin.
1648 * o Input Pin to ADC.
1649 * o Input pin to Output pin (bypass, sidetone)
1650 * o DAC to ADC (loopback).
1651 */
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001652static int dapm_power_widgets(struct snd_soc_card *card, int event)
Richard Purdie2b97eab2006-10-06 18:32:18 +02001653{
1654 struct snd_soc_dapm_widget *w;
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001655 struct snd_soc_dapm_context *d;
Mark Brown291f3bb2009-06-07 13:57:17 +01001656 LIST_HEAD(up_list);
1657 LIST_HEAD(down_list);
Dan Williams2955b472012-07-09 19:33:25 -07001658 ASYNC_DOMAIN_EXCLUSIVE(async_domain);
Mark Brown56fba412011-06-04 11:25:10 +01001659 enum snd_soc_bias_level bias;
Richard Purdie2b97eab2006-10-06 18:32:18 +02001660
Mark Brownf9fa2b12014-03-06 16:49:11 +08001661 lockdep_assert_held(&card->dapm_mutex);
1662
Mark Brown84e90932010-11-04 00:07:02 -04001663 trace_snd_soc_dapm_start(card);
1664
Mark Brown56fba412011-06-04 11:25:10 +01001665 list_for_each_entry(d, &card->dapm_list, list) {
Lars-Peter Clausen86dbf2a2014-09-04 19:44:06 +02001666 if (dapm_idle_bias_off(d))
Mark Brown497098be2012-03-08 15:06:09 +00001667 d->target_bias_level = SND_SOC_BIAS_OFF;
1668 else
1669 d->target_bias_level = SND_SOC_BIAS_STANDBY;
Mark Brown56fba412011-06-04 11:25:10 +01001670 }
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001671
Liam Girdwood6c120e12012-02-15 15:15:34 +00001672 dapm_reset(card);
Mark Brown9b8a83b2011-10-04 22:15:59 +01001673
Mark Brown6d3ddc82009-05-16 17:47:29 +01001674 /* Check which widgets we need to power and store them in
Mark Browndb432b42011-10-03 21:06:40 +01001675 * lists indicating if they should be powered up or down. We
1676 * only check widgets that have been flagged as dirty but note
1677 * that new widgets may be added to the dirty list while we
1678 * iterate.
Mark Brown6d3ddc82009-05-16 17:47:29 +01001679 */
Mark Browndb432b42011-10-03 21:06:40 +01001680 list_for_each_entry(w, &card->dapm_dirty, dirty) {
Mark Brown7c81beb2011-09-20 22:22:32 +01001681 dapm_power_one_widget(w, &up_list, &down_list);
Richard Purdie2b97eab2006-10-06 18:32:18 +02001682 }
1683
Mark Brownf9de6d72011-09-28 17:19:47 +01001684 list_for_each_entry(w, &card->widgets, list) {
Mark Brown0ff97eb2012-07-20 17:29:34 +01001685 switch (w->id) {
1686 case snd_soc_dapm_pre:
1687 case snd_soc_dapm_post:
1688 /* These widgets always need to be powered */
1689 break;
1690 default:
1691 list_del_init(&w->dirty);
1692 break;
1693 }
Mark Browndb432b42011-10-03 21:06:40 +01001694
Lars-Peter Clausen39eb5fd2013-07-29 17:14:03 +02001695 if (w->new_power) {
Mark Brownf9de6d72011-09-28 17:19:47 +01001696 d = w->dapm;
1697
1698 /* Supplies and micbiases only bring the
1699 * context up to STANDBY as unless something
1700 * else is active and passing audio they
Mark Brownafe62362012-01-25 19:55:22 +00001701 * generally don't require full power. Signal
1702 * generators are virtual pins and have no
1703 * power impact themselves.
Mark Brownf9de6d72011-09-28 17:19:47 +01001704 */
1705 switch (w->id) {
Mark Brownafe62362012-01-25 19:55:22 +00001706 case snd_soc_dapm_siggen:
Lars-Peter Clausenda83fea2013-10-05 19:26:17 +02001707 case snd_soc_dapm_vmid:
Mark Brownafe62362012-01-25 19:55:22 +00001708 break;
Mark Brownf9de6d72011-09-28 17:19:47 +01001709 case snd_soc_dapm_supply:
Mark Brown62ea8742012-01-21 21:14:48 +00001710 case snd_soc_dapm_regulator_supply:
Ola Liljad7e7eb92012-05-24 15:26:25 +02001711 case snd_soc_dapm_clock_supply:
Mark Brownf9de6d72011-09-28 17:19:47 +01001712 case snd_soc_dapm_micbias:
1713 if (d->target_bias_level < SND_SOC_BIAS_STANDBY)
1714 d->target_bias_level = SND_SOC_BIAS_STANDBY;
1715 break;
1716 default:
1717 d->target_bias_level = SND_SOC_BIAS_ON;
1718 break;
1719 }
1720 }
1721
1722 }
1723
Mark Brown85a843c2011-09-21 21:29:47 +01001724 /* Force all contexts in the card to the same bias state if
1725 * they're not ground referenced.
1726 */
Mark Brown56fba412011-06-04 11:25:10 +01001727 bias = SND_SOC_BIAS_OFF;
Mark Brown52ba67b2011-04-04 21:05:11 +09001728 list_for_each_entry(d, &card->dapm_list, list)
Mark Brown56fba412011-06-04 11:25:10 +01001729 if (d->target_bias_level > bias)
1730 bias = d->target_bias_level;
Mark Brown52ba67b2011-04-04 21:05:11 +09001731 list_for_each_entry(d, &card->dapm_list, list)
Lars-Peter Clausen86dbf2a2014-09-04 19:44:06 +02001732 if (!dapm_idle_bias_off(d))
Mark Brown85a843c2011-09-21 21:29:47 +01001733 d->target_bias_level = bias;
Mark Brown52ba67b2011-04-04 21:05:11 +09001734
Mark Brownde02d072011-09-20 21:43:24 +01001735 trace_snd_soc_dapm_walk_done(card);
Mark Brown52ba67b2011-04-04 21:05:11 +09001736
Xiang Xiao17282ba2014-03-02 00:04:03 +08001737 /* Run card bias changes at first */
1738 dapm_pre_sequence_async(&card->dapm, 0);
1739 /* Run other bias changes in parallel */
1740 list_for_each_entry(d, &card->dapm_list, list) {
1741 if (d != &card->dapm)
1742 async_schedule_domain(dapm_pre_sequence_async, d,
1743 &async_domain);
1744 }
Mark Brown9d0624a2011-02-18 11:49:43 -08001745 async_synchronize_full_domain(&async_domain);
Mark Brown452c5ea2009-05-17 21:41:23 +01001746
Lars-Peter Clausencf1f7c62013-05-23 00:12:53 +02001747 list_for_each_entry(w, &down_list, power_list) {
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001748 dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD);
Mark Brown80114122013-02-25 15:14:19 +00001749 }
1750
Lars-Peter Clausencf1f7c62013-05-23 00:12:53 +02001751 list_for_each_entry(w, &up_list, power_list) {
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001752 dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU);
Mark Brown80114122013-02-25 15:14:19 +00001753 }
1754
Mark Brown6d3ddc82009-05-16 17:47:29 +01001755 /* Power down widgets first; try to avoid amplifying pops. */
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001756 dapm_seq_run(card, &down_list, event, false);
Mark Brown6d3ddc82009-05-16 17:47:29 +01001757
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001758 dapm_widget_update(card);
Mark Brown97404f22010-12-14 16:13:57 +00001759
Mark Brown6d3ddc82009-05-16 17:47:29 +01001760 /* Now power up. */
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001761 dapm_seq_run(card, &up_list, event, true);
Richard Purdie2b97eab2006-10-06 18:32:18 +02001762
Mark Brown9d0624a2011-02-18 11:49:43 -08001763 /* Run all the bias changes in parallel */
Xiang Xiao17282ba2014-03-02 00:04:03 +08001764 list_for_each_entry(d, &card->dapm_list, list) {
1765 if (d != &card->dapm)
1766 async_schedule_domain(dapm_post_sequence_async, d,
1767 &async_domain);
1768 }
Mark Brown9d0624a2011-02-18 11:49:43 -08001769 async_synchronize_full_domain(&async_domain);
Xiang Xiao17282ba2014-03-02 00:04:03 +08001770 /* Run card bias changes at last */
1771 dapm_post_sequence_async(&card->dapm, 0);
Mark Brown452c5ea2009-05-17 21:41:23 +01001772
Liam Girdwood8078d872012-02-15 15:15:35 +00001773 /* do we need to notify any clients that DAPM event is complete */
1774 list_for_each_entry(d, &card->dapm_list, list) {
1775 if (d->stream_event)
1776 d->stream_event(d, event);
1777 }
1778
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001779 pop_dbg(card->dev, card->pop_time,
Jarkko Nikulafd8d3bc2010-11-09 14:40:28 +02001780 "DAPM sequencing finished, waiting %dms\n", card->pop_time);
Jarkko Nikula3a45b862010-11-05 20:35:21 +02001781 pop_wait(card->pop_time);
Mark Browncb507e72009-07-08 18:54:57 +01001782
Mark Brown84e90932010-11-04 00:07:02 -04001783 trace_snd_soc_dapm_done(card);
1784
Mark Brown42aa3412009-03-01 19:21:10 +00001785 return 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +02001786}
1787
Mark Brown79fb9382009-08-21 16:38:13 +01001788#ifdef CONFIG_DEBUG_FS
Mark Brown79fb9382009-08-21 16:38:13 +01001789static ssize_t dapm_widget_power_read_file(struct file *file,
1790 char __user *user_buf,
1791 size_t count, loff_t *ppos)
1792{
1793 struct snd_soc_dapm_widget *w = file->private_data;
1794 char *buf;
1795 int in, out;
1796 ssize_t ret;
1797 struct snd_soc_dapm_path *p = NULL;
1798
1799 buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
1800 if (!buf)
1801 return -ENOMEM;
1802
Lars-Peter Clausenc1862c82014-10-25 17:42:00 +02001803 /* Supply widgets are not handled by is_connected_{input,output}_ep() */
1804 if (w->is_supply) {
1805 in = 0;
1806 out = 0;
1807 } else {
1808 in = is_connected_input_ep(w, NULL);
1809 out = is_connected_output_ep(w, NULL);
1810 }
Mark Brown79fb9382009-08-21 16:38:13 +01001811
Mark Brownf13ebad2012-03-03 18:01:01 +00001812 ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d",
1813 w->name, w->power ? "On" : "Off",
1814 w->force ? " (forced)" : "", in, out);
Mark Brown79fb9382009-08-21 16:38:13 +01001815
Mark Brownd033c362009-12-04 15:25:56 +00001816 if (w->reg >= 0)
1817 ret += snprintf(buf + ret, PAGE_SIZE - ret,
Lars-Peter Clausende9ba982013-07-29 17:14:01 +02001818 " - R%d(0x%x) mask 0x%x",
1819 w->reg, w->reg, w->mask << w->shift);
Mark Brownd033c362009-12-04 15:25:56 +00001820
1821 ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n");
1822
Mark Brown3eef08b2009-09-14 16:49:00 +01001823 if (w->sname)
1824 ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n",
1825 w->sname,
1826 w->active ? "active" : "inactive");
Mark Brown79fb9382009-08-21 16:38:13 +01001827
1828 list_for_each_entry(p, &w->sources, list_sink) {
Takashi Iwaiff186202013-10-28 14:21:49 +01001829 if (p->connected && !p->connected(w, p->source))
Mark Brown215edda2009-09-08 18:59:05 +01001830 continue;
1831
Mark Brown79fb9382009-08-21 16:38:13 +01001832 if (p->connect)
1833 ret += snprintf(buf + ret, PAGE_SIZE - ret,
Dimitris Papastamos67f5ed62011-02-24 17:09:32 +00001834 " in \"%s\" \"%s\"\n",
Mark Brown79fb9382009-08-21 16:38:13 +01001835 p->name ? p->name : "static",
1836 p->source->name);
1837 }
1838 list_for_each_entry(p, &w->sinks, list_source) {
Mark Brown215edda2009-09-08 18:59:05 +01001839 if (p->connected && !p->connected(w, p->sink))
1840 continue;
1841
Mark Brown79fb9382009-08-21 16:38:13 +01001842 if (p->connect)
1843 ret += snprintf(buf + ret, PAGE_SIZE - ret,
Dimitris Papastamos67f5ed62011-02-24 17:09:32 +00001844 " out \"%s\" \"%s\"\n",
Mark Brown79fb9382009-08-21 16:38:13 +01001845 p->name ? p->name : "static",
1846 p->sink->name);
1847 }
1848
1849 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
1850
1851 kfree(buf);
1852 return ret;
1853}
1854
1855static const struct file_operations dapm_widget_power_fops = {
Stephen Boyd234e3402012-04-05 14:25:11 -07001856 .open = simple_open,
Mark Brown79fb9382009-08-21 16:38:13 +01001857 .read = dapm_widget_power_read_file,
Arnd Bergmann6038f372010-08-15 18:52:59 +02001858 .llseek = default_llseek,
Mark Brown79fb9382009-08-21 16:38:13 +01001859};
1860
Mark Brownef49e4f2011-04-04 20:48:13 +09001861static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf,
1862 size_t count, loff_t *ppos)
1863{
1864 struct snd_soc_dapm_context *dapm = file->private_data;
1865 char *level;
1866
1867 switch (dapm->bias_level) {
1868 case SND_SOC_BIAS_ON:
1869 level = "On\n";
1870 break;
1871 case SND_SOC_BIAS_PREPARE:
1872 level = "Prepare\n";
1873 break;
1874 case SND_SOC_BIAS_STANDBY:
1875 level = "Standby\n";
1876 break;
1877 case SND_SOC_BIAS_OFF:
1878 level = "Off\n";
1879 break;
1880 default:
Takashi Iwaia6ed0602013-11-06 11:07:19 +01001881 WARN(1, "Unknown bias_level %d\n", dapm->bias_level);
Mark Brownef49e4f2011-04-04 20:48:13 +09001882 level = "Unknown\n";
1883 break;
1884 }
1885
1886 return simple_read_from_buffer(user_buf, count, ppos, level,
1887 strlen(level));
1888}
1889
1890static const struct file_operations dapm_bias_fops = {
Stephen Boyd234e3402012-04-05 14:25:11 -07001891 .open = simple_open,
Mark Brownef49e4f2011-04-04 20:48:13 +09001892 .read = dapm_bias_read_file,
1893 .llseek = default_llseek,
1894};
1895
Lars-Peter Clausen8eecaf62011-04-30 19:45:48 +02001896void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm,
1897 struct dentry *parent)
Mark Brown79fb9382009-08-21 16:38:13 +01001898{
Mark Brown79fb9382009-08-21 16:38:13 +01001899 struct dentry *d;
1900
Lars-Peter Clausen8eecaf62011-04-30 19:45:48 +02001901 dapm->debugfs_dapm = debugfs_create_dir("dapm", parent);
1902
1903 if (!dapm->debugfs_dapm) {
Liam Girdwoodf1e90af2012-03-06 18:13:25 +00001904 dev_warn(dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001905 "ASoC: Failed to create DAPM debugfs directory\n");
Mark Brown79fb9382009-08-21 16:38:13 +01001906 return;
Lars-Peter Clausen8eecaf62011-04-30 19:45:48 +02001907 }
Mark Brown79fb9382009-08-21 16:38:13 +01001908
Mark Brownef49e4f2011-04-04 20:48:13 +09001909 d = debugfs_create_file("bias_level", 0444,
1910 dapm->debugfs_dapm, dapm,
1911 &dapm_bias_fops);
1912 if (!d)
1913 dev_warn(dapm->dev,
1914 "ASoC: Failed to create bias level debugfs file\n");
Mark Brown79fb9382009-08-21 16:38:13 +01001915}
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +02001916
1917static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w)
1918{
1919 struct snd_soc_dapm_context *dapm = w->dapm;
1920 struct dentry *d;
1921
1922 if (!dapm->debugfs_dapm || !w->name)
1923 return;
1924
1925 d = debugfs_create_file(w->name, 0444,
1926 dapm->debugfs_dapm, w,
1927 &dapm_widget_power_fops);
1928 if (!d)
1929 dev_warn(w->dapm->dev,
1930 "ASoC: Failed to create %s debugfs file\n",
1931 w->name);
1932}
1933
Lars-Peter Clausen6c45e122011-04-30 19:45:50 +02001934static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm)
1935{
1936 debugfs_remove_recursive(dapm->debugfs_dapm);
1937}
1938
Mark Brown79fb9382009-08-21 16:38:13 +01001939#else
Lars-Peter Clausen8eecaf62011-04-30 19:45:48 +02001940void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm,
1941 struct dentry *parent)
Mark Brown79fb9382009-08-21 16:38:13 +01001942{
1943}
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +02001944
1945static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w)
1946{
1947}
1948
Lars-Peter Clausen6c45e122011-04-30 19:45:50 +02001949static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm)
1950{
1951}
1952
Mark Brown79fb9382009-08-21 16:38:13 +01001953#endif
1954
Lars-Peter Clausen4a201942014-10-25 17:41:56 +02001955/*
1956 * soc_dapm_connect_path() - Connects or disconnects a path
1957 * @path: The path to update
1958 * @connect: The new connect state of the path. True if the path is connected,
1959 * false if it is disconneted.
1960 * @reason: The reason why the path changed (for debugging only)
1961 */
1962static void soc_dapm_connect_path(struct snd_soc_dapm_path *path,
1963 bool connect, const char *reason)
1964{
1965 if (path->connect == connect)
1966 return;
1967
1968 path->connect = connect;
1969 dapm_mark_dirty(path->source, reason);
1970 dapm_mark_dirty(path->sink, reason);
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +02001971 dapm_path_invalidate(path);
Lars-Peter Clausen4a201942014-10-25 17:41:56 +02001972}
1973
Richard Purdie2b97eab2006-10-06 18:32:18 +02001974/* test and update the power status of a mux widget */
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001975static int soc_dapm_mux_update_power(struct snd_soc_card *card,
Liam Girdwood40f02cd2012-02-06 16:05:14 +00001976 struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e)
Richard Purdie2b97eab2006-10-06 18:32:18 +02001977{
1978 struct snd_soc_dapm_path *path;
1979 int found = 0;
Lars-Peter Clausen4a201942014-10-25 17:41:56 +02001980 bool connect;
Richard Purdie2b97eab2006-10-06 18:32:18 +02001981
Mark Brownf9fa2b12014-03-06 16:49:11 +08001982 lockdep_assert_held(&card->dapm_mutex);
1983
Richard Purdie2b97eab2006-10-06 18:32:18 +02001984 /* find dapm widget path assoc with kcontrol */
Lars-Peter Clausen5106b922013-07-29 17:14:00 +02001985 dapm_kcontrol_for_each_path(path, kcontrol) {
Richard Purdie2b97eab2006-10-06 18:32:18 +02001986 found = 1;
1987 /* we now need to match the string in the enum to the path */
Lars-Peter Clausen4a201942014-10-25 17:41:56 +02001988 if (!(strcmp(path->name, e->texts[mux])))
1989 connect = true;
1990 else
1991 connect = false;
1992
1993 soc_dapm_connect_path(path, connect, "mux update");
Richard Purdie2b97eab2006-10-06 18:32:18 +02001994 }
1995
Lars-Peter Clausence6cfaf2013-07-24 15:27:37 +02001996 if (found)
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02001997 dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP);
Richard Purdie2b97eab2006-10-06 18:32:18 +02001998
Liam Girdwood618dae12012-04-25 12:12:51 +01001999 return found;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002000}
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002001
Lars-Peter Clausence6cfaf2013-07-24 15:27:37 +02002002int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm,
Lars-Peter Clausen6b3fc032013-07-24 15:27:38 +02002003 struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e,
2004 struct snd_soc_dapm_update *update)
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002005{
Lars-Peter Clausence6cfaf2013-07-24 15:27:37 +02002006 struct snd_soc_card *card = dapm->card;
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002007 int ret;
2008
Liam Girdwood3cd04342012-03-09 12:02:08 +00002009 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Lars-Peter Clausen564c65042013-07-29 17:13:55 +02002010 card->update = update;
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02002011 ret = soc_dapm_mux_update_power(card, kcontrol, mux, e);
Lars-Peter Clausen564c65042013-07-29 17:13:55 +02002012 card->update = NULL;
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002013 mutex_unlock(&card->dapm_mutex);
Liam Girdwood618dae12012-04-25 12:12:51 +01002014 if (ret > 0)
Lars-Peter Clausenc3f48ae2013-07-24 15:27:36 +02002015 soc_dpcm_runtime_update(card);
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002016 return ret;
2017}
Liam Girdwood40f02cd2012-02-06 16:05:14 +00002018EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002019
Milan plzik1b075e32008-01-10 14:39:46 +01002020/* test and update the power status of a mixer or switch widget */
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02002021static int soc_dapm_mixer_update_power(struct snd_soc_card *card,
Mark Brown283375c2009-12-07 18:09:03 +00002022 struct snd_kcontrol *kcontrol, int connect)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002023{
2024 struct snd_soc_dapm_path *path;
2025 int found = 0;
2026
Mark Brownf9fa2b12014-03-06 16:49:11 +08002027 lockdep_assert_held(&card->dapm_mutex);
2028
Richard Purdie2b97eab2006-10-06 18:32:18 +02002029 /* find dapm widget path assoc with kcontrol */
Lars-Peter Clausen5106b922013-07-29 17:14:00 +02002030 dapm_kcontrol_for_each_path(path, kcontrol) {
Richard Purdie2b97eab2006-10-06 18:32:18 +02002031 found = 1;
Lars-Peter Clausen4a201942014-10-25 17:41:56 +02002032 soc_dapm_connect_path(path, connect, "mixer update");
Richard Purdie2b97eab2006-10-06 18:32:18 +02002033 }
2034
Lars-Peter Clausence6cfaf2013-07-24 15:27:37 +02002035 if (found)
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02002036 dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002037
Liam Girdwood618dae12012-04-25 12:12:51 +01002038 return found;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002039}
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002040
Lars-Peter Clausence6cfaf2013-07-24 15:27:37 +02002041int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm,
Lars-Peter Clausen6b3fc032013-07-24 15:27:38 +02002042 struct snd_kcontrol *kcontrol, int connect,
2043 struct snd_soc_dapm_update *update)
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002044{
Lars-Peter Clausence6cfaf2013-07-24 15:27:37 +02002045 struct snd_soc_card *card = dapm->card;
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002046 int ret;
2047
Liam Girdwood3cd04342012-03-09 12:02:08 +00002048 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Lars-Peter Clausen564c65042013-07-29 17:13:55 +02002049 card->update = update;
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02002050 ret = soc_dapm_mixer_update_power(card, kcontrol, connect);
Lars-Peter Clausen564c65042013-07-29 17:13:55 +02002051 card->update = NULL;
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002052 mutex_unlock(&card->dapm_mutex);
Liam Girdwood618dae12012-04-25 12:12:51 +01002053 if (ret > 0)
Lars-Peter Clausenc3f48ae2013-07-24 15:27:36 +02002054 soc_dpcm_runtime_update(card);
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002055 return ret;
2056}
Liam Girdwood40f02cd2012-02-06 16:05:14 +00002057EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002058
Benoit Cousson44ba2642014-07-08 23:19:36 +02002059static ssize_t dapm_widget_show_codec(struct snd_soc_codec *codec, char *buf)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002060{
Richard Purdie2b97eab2006-10-06 18:32:18 +02002061 struct snd_soc_dapm_widget *w;
2062 int count = 0;
2063 char *state = "not set";
2064
Lars-Peter Clausen00200102014-07-17 22:01:07 +02002065 list_for_each_entry(w, &codec->component.card->widgets, list) {
Jarkko Nikula97c866d2010-12-14 12:18:31 +02002066 if (w->dapm != &codec->dapm)
2067 continue;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002068
2069 /* only display widgets that burnm power */
2070 switch (w->id) {
2071 case snd_soc_dapm_hp:
2072 case snd_soc_dapm_mic:
2073 case snd_soc_dapm_spk:
2074 case snd_soc_dapm_line:
2075 case snd_soc_dapm_micbias:
2076 case snd_soc_dapm_dac:
2077 case snd_soc_dapm_adc:
2078 case snd_soc_dapm_pga:
Olaya, Margaritad88429a2010-12-10 21:11:44 -06002079 case snd_soc_dapm_out_drv:
Richard Purdie2b97eab2006-10-06 18:32:18 +02002080 case snd_soc_dapm_mixer:
Ian Moltonca9c1aa2009-01-06 20:11:51 +00002081 case snd_soc_dapm_mixer_named_ctl:
Mark Brown246d0a12009-04-22 18:24:55 +01002082 case snd_soc_dapm_supply:
Mark Brown62ea8742012-01-21 21:14:48 +00002083 case snd_soc_dapm_regulator_supply:
Ola Liljad7e7eb92012-05-24 15:26:25 +02002084 case snd_soc_dapm_clock_supply:
Richard Purdie2b97eab2006-10-06 18:32:18 +02002085 if (w->name)
2086 count += sprintf(buf + count, "%s: %s\n",
2087 w->name, w->power ? "On":"Off");
2088 break;
2089 default:
2090 break;
2091 }
2092 }
2093
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002094 switch (codec->dapm.bias_level) {
Mark Brown0be98982008-05-19 12:31:28 +02002095 case SND_SOC_BIAS_ON:
2096 state = "On";
Richard Purdie2b97eab2006-10-06 18:32:18 +02002097 break;
Mark Brown0be98982008-05-19 12:31:28 +02002098 case SND_SOC_BIAS_PREPARE:
2099 state = "Prepare";
Richard Purdie2b97eab2006-10-06 18:32:18 +02002100 break;
Mark Brown0be98982008-05-19 12:31:28 +02002101 case SND_SOC_BIAS_STANDBY:
2102 state = "Standby";
Richard Purdie2b97eab2006-10-06 18:32:18 +02002103 break;
Mark Brown0be98982008-05-19 12:31:28 +02002104 case SND_SOC_BIAS_OFF:
2105 state = "Off";
Richard Purdie2b97eab2006-10-06 18:32:18 +02002106 break;
2107 }
2108 count += sprintf(buf + count, "PM State: %s\n", state);
2109
2110 return count;
2111}
2112
Benoit Cousson44ba2642014-07-08 23:19:36 +02002113/* show dapm widget status in sys fs */
2114static ssize_t dapm_widget_show(struct device *dev,
2115 struct device_attribute *attr, char *buf)
2116{
2117 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
2118 int i, count = 0;
2119
2120 for (i = 0; i < rtd->num_codecs; i++) {
2121 struct snd_soc_codec *codec = rtd->codec_dais[i]->codec;
2122 count += dapm_widget_show_codec(codec, buf + count);
2123 }
2124
2125 return count;
2126}
2127
Richard Purdie2b97eab2006-10-06 18:32:18 +02002128static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL);
2129
Takashi Iwaid29697d2015-01-30 20:16:37 +01002130struct attribute *soc_dapm_dev_attrs[] = {
2131 &dev_attr_dapm_widget.attr,
2132 NULL
2133};
Richard Purdie2b97eab2006-10-06 18:32:18 +02002134
Lars-Peter Clausen88722932013-06-14 13:16:53 +02002135static void dapm_free_path(struct snd_soc_dapm_path *path)
2136{
2137 list_del(&path->list_sink);
2138 list_del(&path->list_source);
Lars-Peter Clausen5106b922013-07-29 17:14:00 +02002139 list_del(&path->list_kcontrol);
Lars-Peter Clausen88722932013-06-14 13:16:53 +02002140 list_del(&path->list);
Lars-Peter Clausen88722932013-06-14 13:16:53 +02002141 kfree(path);
2142}
2143
Richard Purdie2b97eab2006-10-06 18:32:18 +02002144/* free all dapm widgets and resources */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002145static void dapm_free_widgets(struct snd_soc_dapm_context *dapm)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002146{
2147 struct snd_soc_dapm_widget *w, *next_w;
2148 struct snd_soc_dapm_path *p, *next_p;
2149
Jarkko Nikula97c866d2010-12-14 12:18:31 +02002150 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) {
2151 if (w->dapm != dapm)
2152 continue;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002153 list_del(&w->list);
Jarkko Nikula8ddab3f2010-12-14 12:18:30 +02002154 /*
2155 * remove source and sink paths associated to this widget.
2156 * While removing the path, remove reference to it from both
2157 * source and sink widgets so that path is removed only once.
2158 */
Lars-Peter Clausen88722932013-06-14 13:16:53 +02002159 list_for_each_entry_safe(p, next_p, &w->sources, list_sink)
2160 dapm_free_path(p);
2161
2162 list_for_each_entry_safe(p, next_p, &w->sinks, list_source)
2163 dapm_free_path(p);
2164
Stephen Warrenfad59882011-04-28 17:37:59 -06002165 kfree(w->kcontrols);
Jarkko Nikulaead9b912010-11-13 20:40:44 +02002166 kfree(w->name);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002167 kfree(w);
2168 }
Richard Purdie2b97eab2006-10-06 18:32:18 +02002169}
2170
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02002171static struct snd_soc_dapm_widget *dapm_find_widget(
2172 struct snd_soc_dapm_context *dapm, const char *pin,
2173 bool search_other_contexts)
2174{
2175 struct snd_soc_dapm_widget *w;
2176 struct snd_soc_dapm_widget *fallback = NULL;
2177
2178 list_for_each_entry(w, &dapm->card->widgets, list) {
2179 if (!strcmp(w->name, pin)) {
2180 if (w->dapm == dapm)
2181 return w;
2182 else
2183 fallback = w;
2184 }
2185 }
2186
2187 if (search_other_contexts)
2188 return fallback;
2189
2190 return NULL;
2191}
2192
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002193static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm,
Mark Brown16499232009-01-07 18:25:13 +00002194 const char *pin, int status)
Liam Girdwooda5302182008-07-07 13:35:17 +01002195{
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02002196 struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true);
Liam Girdwooda5302182008-07-07 13:35:17 +01002197
Mark Brownf9fa2b12014-03-06 16:49:11 +08002198 dapm_assert_locked(dapm);
2199
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02002200 if (!w) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002201 dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin);
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02002202 return -EINVAL;
Liam Girdwooda5302182008-07-07 13:35:17 +01002203 }
2204
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +02002205 if (w->connected != status) {
Mark Brown1a8b2d92012-02-16 11:50:07 -08002206 dapm_mark_dirty(w, "pin configuration");
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +02002207 dapm_widget_invalidate_input_paths(w);
2208 dapm_widget_invalidate_output_paths(w);
2209 }
Mark Brown1a8b2d92012-02-16 11:50:07 -08002210
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02002211 w->connected = status;
2212 if (status == 0)
2213 w->force = 0;
Mark Brown0d867332011-04-06 11:38:14 +09002214
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02002215 return 0;
Liam Girdwooda5302182008-07-07 13:35:17 +01002216}
2217
Richard Purdie2b97eab2006-10-06 18:32:18 +02002218/**
Charles Keepax3eb29df2014-02-18 15:22:15 +00002219 * snd_soc_dapm_sync_unlocked - scan and power dapm paths
2220 * @dapm: DAPM context
2221 *
2222 * Walks all dapm audio paths and powers widgets according to their
2223 * stream or path usage.
2224 *
2225 * Requires external locking.
2226 *
2227 * Returns 0 for success.
2228 */
2229int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm)
2230{
2231 /*
2232 * Suppress early reports (eg, jacks syncing their state) to avoid
2233 * silly DAPM runs during card startup.
2234 */
2235 if (!dapm->card || !dapm->card->instantiated)
2236 return 0;
2237
2238 return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP);
2239}
2240EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked);
2241
2242/**
Liam Girdwooda5302182008-07-07 13:35:17 +01002243 * snd_soc_dapm_sync - scan and power dapm paths
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002244 * @dapm: DAPM context
Richard Purdie2b97eab2006-10-06 18:32:18 +02002245 *
2246 * Walks all dapm audio paths and powers widgets according to their
2247 * stream or path usage.
2248 *
2249 * Returns 0 for success.
2250 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002251int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002252{
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00002253 int ret;
2254
Liam Girdwood3cd04342012-03-09 12:02:08 +00002255 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Charles Keepax3eb29df2014-02-18 15:22:15 +00002256 ret = snd_soc_dapm_sync_unlocked(dapm);
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00002257 mutex_unlock(&dapm->card->dapm_mutex);
2258 return ret;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002259}
Liam Girdwooda5302182008-07-07 13:35:17 +01002260EXPORT_SYMBOL_GPL(snd_soc_dapm_sync);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002261
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02002262/*
2263 * dapm_update_widget_flags() - Re-compute widget sink and source flags
2264 * @w: The widget for which to update the flags
2265 *
2266 * Some widgets have a dynamic category which depends on which neighbors they
2267 * are connected to. This function update the category for these widgets.
2268 *
2269 * This function must be called whenever a path is added or removed to a widget.
2270 */
2271static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w)
2272{
2273 struct snd_soc_dapm_path *p;
2274
2275 switch (w->id) {
2276 case snd_soc_dapm_input:
Lars-Peter Clausen86d75002014-12-21 11:05:44 +01002277 /* On a fully routed card a input is never a source */
2278 if (w->dapm->card->fully_routed)
2279 break;
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02002280 w->is_source = 1;
2281 list_for_each_entry(p, &w->sources, list_sink) {
2282 if (p->source->id == snd_soc_dapm_micbias ||
2283 p->source->id == snd_soc_dapm_mic ||
2284 p->source->id == snd_soc_dapm_line ||
2285 p->source->id == snd_soc_dapm_output) {
2286 w->is_source = 0;
2287 break;
2288 }
2289 }
2290 break;
2291 case snd_soc_dapm_output:
Lars-Peter Clausen86d75002014-12-21 11:05:44 +01002292 /* On a fully routed card a output is never a sink */
2293 if (w->dapm->card->fully_routed)
2294 break;
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02002295 w->is_sink = 1;
2296 list_for_each_entry(p, &w->sinks, list_source) {
2297 if (p->sink->id == snd_soc_dapm_spk ||
2298 p->sink->id == snd_soc_dapm_hp ||
2299 p->sink->id == snd_soc_dapm_line ||
2300 p->sink->id == snd_soc_dapm_input) {
2301 w->is_sink = 0;
2302 break;
2303 }
2304 }
2305 break;
2306 case snd_soc_dapm_line:
2307 w->is_sink = !list_empty(&w->sources);
2308 w->is_source = !list_empty(&w->sinks);
2309 break;
2310 default:
2311 break;
2312 }
2313}
2314
Lars-Peter Clausen25536282013-07-29 17:14:02 +02002315static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm,
2316 struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink,
2317 const char *control,
2318 int (*connected)(struct snd_soc_dapm_widget *source,
2319 struct snd_soc_dapm_widget *sink))
Richard Purdie2b97eab2006-10-06 18:32:18 +02002320{
2321 struct snd_soc_dapm_path *path;
Lars-Peter Clausen25536282013-07-29 17:14:02 +02002322 int ret;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002323
Lars-Peter Clausene409dfb2014-10-25 17:42:02 +02002324 if (wsink->is_supply && !wsource->is_supply) {
2325 dev_err(dapm->dev,
2326 "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n",
2327 wsource->name, wsink->name);
2328 return -EINVAL;
2329 }
2330
2331 if (connected && !wsource->is_supply) {
2332 dev_err(dapm->dev,
2333 "connected() callback only supported for supply widgets (%s -> %s)\n",
2334 wsource->name, wsink->name);
2335 return -EINVAL;
2336 }
2337
2338 if (wsource->is_supply && control) {
2339 dev_err(dapm->dev,
2340 "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n",
2341 wsource->name, control, wsink->name);
2342 return -EINVAL;
2343 }
2344
Richard Purdie2b97eab2006-10-06 18:32:18 +02002345 path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL);
2346 if (!path)
2347 return -ENOMEM;
2348
2349 path->source = wsource;
2350 path->sink = wsink;
Lars-Peter Clausen25536282013-07-29 17:14:02 +02002351 path->connected = connected;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002352 INIT_LIST_HEAD(&path->list);
Mark Brown69c2d342013-08-13 00:20:36 +01002353 INIT_LIST_HEAD(&path->list_kcontrol);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002354 INIT_LIST_HEAD(&path->list_source);
2355 INIT_LIST_HEAD(&path->list_sink);
2356
Lars-Peter Clausenc1862c82014-10-25 17:42:00 +02002357 if (wsource->is_supply || wsink->is_supply)
2358 path->is_supply = 1;
2359
Richard Purdie2b97eab2006-10-06 18:32:18 +02002360 /* connect static paths */
2361 if (control == NULL) {
Richard Purdie2b97eab2006-10-06 18:32:18 +02002362 path->connect = 1;
Lars-Peter Clausen5fe5b762014-10-25 17:41:58 +02002363 } else {
2364 /* connect dynamic paths */
2365 switch (wsink->id) {
2366 case snd_soc_dapm_mux:
2367 ret = dapm_connect_mux(dapm, path, control);
2368 if (ret != 0)
2369 goto err;
2370 break;
2371 case snd_soc_dapm_switch:
2372 case snd_soc_dapm_mixer:
2373 case snd_soc_dapm_mixer_named_ctl:
2374 ret = dapm_connect_mixer(dapm, path, control);
2375 if (ret != 0)
2376 goto err;
2377 break;
2378 default:
2379 dev_err(dapm->dev,
2380 "Control not supported for path %s -> [%s] -> %s\n",
2381 wsource->name, control, wsink->name);
2382 ret = -EINVAL;
2383 goto err;
2384 }
Richard Purdie2b97eab2006-10-06 18:32:18 +02002385 }
2386
Lars-Peter Clausen5fe5b762014-10-25 17:41:58 +02002387 list_add(&path->list, &dapm->card->paths);
2388 list_add(&path->list_sink, &wsink->sources);
2389 list_add(&path->list_source, &wsource->sinks);
2390
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02002391 dapm_update_widget_flags(wsource);
2392 dapm_update_widget_flags(wsink);
2393
Lars-Peter Clausen5fe5b762014-10-25 17:41:58 +02002394 dapm_mark_dirty(wsource, "Route added");
2395 dapm_mark_dirty(wsink, "Route added");
Mark Brownfabd0382012-07-05 17:20:06 +01002396
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +02002397 if (dapm->card->instantiated && path->connect)
2398 dapm_path_invalidate(path);
2399
Richard Purdie2b97eab2006-10-06 18:32:18 +02002400 return 0;
Lars-Peter Clausen25536282013-07-29 17:14:02 +02002401err:
2402 kfree(path);
2403 return ret;
2404}
Richard Purdie2b97eab2006-10-06 18:32:18 +02002405
Lars-Peter Clausen25536282013-07-29 17:14:02 +02002406static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
Lars-Peter Clausena4e91542014-05-07 16:20:25 +02002407 const struct snd_soc_dapm_route *route)
Lars-Peter Clausen25536282013-07-29 17:14:02 +02002408{
2409 struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w;
2410 struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL;
2411 const char *sink;
2412 const char *source;
2413 char prefixed_sink[80];
2414 char prefixed_source[80];
Lars-Peter Clausen94f99c82014-06-16 18:13:01 +02002415 const char *prefix;
Lars-Peter Clausen25536282013-07-29 17:14:02 +02002416 int ret;
2417
Lars-Peter Clausen94f99c82014-06-16 18:13:01 +02002418 prefix = soc_dapm_prefix(dapm);
2419 if (prefix) {
Lars-Peter Clausen25536282013-07-29 17:14:02 +02002420 snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s",
Lars-Peter Clausen94f99c82014-06-16 18:13:01 +02002421 prefix, route->sink);
Lars-Peter Clausen25536282013-07-29 17:14:02 +02002422 sink = prefixed_sink;
2423 snprintf(prefixed_source, sizeof(prefixed_source), "%s %s",
Lars-Peter Clausen94f99c82014-06-16 18:13:01 +02002424 prefix, route->source);
Lars-Peter Clausen25536282013-07-29 17:14:02 +02002425 source = prefixed_source;
2426 } else {
2427 sink = route->sink;
2428 source = route->source;
2429 }
2430
2431 /*
2432 * find src and dest widgets over all widgets but favor a widget from
2433 * current DAPM context
2434 */
2435 list_for_each_entry(w, &dapm->card->widgets, list) {
2436 if (!wsink && !(strcmp(w->name, sink))) {
2437 wtsink = w;
2438 if (w->dapm == dapm)
2439 wsink = w;
2440 continue;
2441 }
2442 if (!wsource && !(strcmp(w->name, source))) {
2443 wtsource = w;
2444 if (w->dapm == dapm)
2445 wsource = w;
2446 }
2447 }
2448 /* use widget from another DAPM context if not found from this */
2449 if (!wsink)
2450 wsink = wtsink;
2451 if (!wsource)
2452 wsource = wtsource;
2453
2454 if (wsource == NULL) {
2455 dev_err(dapm->dev, "ASoC: no source widget found for %s\n",
2456 route->source);
2457 return -ENODEV;
2458 }
2459 if (wsink == NULL) {
2460 dev_err(dapm->dev, "ASoC: no sink widget found for %s\n",
2461 route->sink);
2462 return -ENODEV;
2463 }
2464
2465 ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control,
2466 route->connected);
2467 if (ret)
2468 goto err;
2469
2470 return 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002471err:
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002472 dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n",
Lars-Peter Clausen25536282013-07-29 17:14:02 +02002473 source, route->control, sink);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002474 return ret;
2475}
Mark Brown105f1c22008-05-13 14:52:19 +02002476
Mark Brownefcc3c62012-07-05 17:24:19 +01002477static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm,
2478 const struct snd_soc_dapm_route *route)
2479{
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02002480 struct snd_soc_dapm_widget *wsource, *wsink;
Mark Brownefcc3c62012-07-05 17:24:19 +01002481 struct snd_soc_dapm_path *path, *p;
2482 const char *sink;
2483 const char *source;
2484 char prefixed_sink[80];
2485 char prefixed_source[80];
Lars-Peter Clausen94f99c82014-06-16 18:13:01 +02002486 const char *prefix;
Mark Brownefcc3c62012-07-05 17:24:19 +01002487
2488 if (route->control) {
2489 dev_err(dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002490 "ASoC: Removal of routes with controls not supported\n");
Mark Brownefcc3c62012-07-05 17:24:19 +01002491 return -EINVAL;
2492 }
2493
Lars-Peter Clausen94f99c82014-06-16 18:13:01 +02002494 prefix = soc_dapm_prefix(dapm);
2495 if (prefix) {
Mark Brownefcc3c62012-07-05 17:24:19 +01002496 snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s",
Lars-Peter Clausen94f99c82014-06-16 18:13:01 +02002497 prefix, route->sink);
Mark Brownefcc3c62012-07-05 17:24:19 +01002498 sink = prefixed_sink;
2499 snprintf(prefixed_source, sizeof(prefixed_source), "%s %s",
Lars-Peter Clausen94f99c82014-06-16 18:13:01 +02002500 prefix, route->source);
Mark Brownefcc3c62012-07-05 17:24:19 +01002501 source = prefixed_source;
2502 } else {
2503 sink = route->sink;
2504 source = route->source;
2505 }
2506
2507 path = NULL;
2508 list_for_each_entry(p, &dapm->card->paths, list) {
2509 if (strcmp(p->source->name, source) != 0)
2510 continue;
2511 if (strcmp(p->sink->name, sink) != 0)
2512 continue;
2513 path = p;
2514 break;
2515 }
2516
2517 if (path) {
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02002518 wsource = path->source;
2519 wsink = path->sink;
2520
2521 dapm_mark_dirty(wsource, "Route removed");
2522 dapm_mark_dirty(wsink, "Route removed");
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +02002523 if (path->connect)
2524 dapm_path_invalidate(path);
Mark Brownefcc3c62012-07-05 17:24:19 +01002525
Lars-Peter Clausen88722932013-06-14 13:16:53 +02002526 dapm_free_path(path);
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02002527
2528 /* Update any path related flags */
2529 dapm_update_widget_flags(wsource);
2530 dapm_update_widget_flags(wsink);
Mark Brownefcc3c62012-07-05 17:24:19 +01002531 } else {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002532 dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n",
Mark Brownefcc3c62012-07-05 17:24:19 +01002533 source, sink);
2534 }
2535
2536 return 0;
2537}
2538
Mark Brown105f1c22008-05-13 14:52:19 +02002539/**
Mark Brown105f1c22008-05-13 14:52:19 +02002540 * snd_soc_dapm_add_routes - Add routes between DAPM widgets
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002541 * @dapm: DAPM context
Mark Brown105f1c22008-05-13 14:52:19 +02002542 * @route: audio routes
2543 * @num: number of routes
2544 *
2545 * Connects 2 dapm widgets together via a named audio path. The sink is
2546 * the widget receiving the audio signal, whilst the source is the sender
2547 * of the audio signal.
2548 *
2549 * Returns 0 for success else error. On error all resources can be freed
2550 * with a call to snd_soc_card_free().
2551 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002552int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
Mark Brown105f1c22008-05-13 14:52:19 +02002553 const struct snd_soc_dapm_route *route, int num)
2554{
Mark Brown62d4a4b2012-06-22 12:21:49 +01002555 int i, r, ret = 0;
Mark Brown105f1c22008-05-13 14:52:19 +02002556
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00002557 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
Mark Brown105f1c22008-05-13 14:52:19 +02002558 for (i = 0; i < num; i++) {
Lars-Peter Clausena4e91542014-05-07 16:20:25 +02002559 r = snd_soc_dapm_add_route(dapm, route);
Mark Brown62d4a4b2012-06-22 12:21:49 +01002560 if (r < 0) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002561 dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n",
2562 route->source,
2563 route->control ? route->control : "direct",
2564 route->sink);
Mark Brown62d4a4b2012-06-22 12:21:49 +01002565 ret = r;
Mark Brown105f1c22008-05-13 14:52:19 +02002566 }
2567 route++;
2568 }
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00002569 mutex_unlock(&dapm->card->dapm_mutex);
Mark Brown105f1c22008-05-13 14:52:19 +02002570
Dan Carpenter60884c22012-04-13 22:25:43 +03002571 return ret;
Mark Brown105f1c22008-05-13 14:52:19 +02002572}
2573EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes);
2574
Mark Brownefcc3c62012-07-05 17:24:19 +01002575/**
2576 * snd_soc_dapm_del_routes - Remove routes between DAPM widgets
2577 * @dapm: DAPM context
2578 * @route: audio routes
2579 * @num: number of routes
2580 *
2581 * Removes routes from the DAPM context.
2582 */
2583int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm,
2584 const struct snd_soc_dapm_route *route, int num)
2585{
2586 int i, ret = 0;
2587
2588 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
2589 for (i = 0; i < num; i++) {
2590 snd_soc_dapm_del_route(dapm, route);
2591 route++;
2592 }
2593 mutex_unlock(&dapm->card->dapm_mutex);
2594
2595 return ret;
2596}
2597EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes);
2598
Mark Brownbf3a9e12011-06-13 16:42:29 +01002599static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm,
2600 const struct snd_soc_dapm_route *route)
2601{
2602 struct snd_soc_dapm_widget *source = dapm_find_widget(dapm,
2603 route->source,
2604 true);
2605 struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm,
2606 route->sink,
2607 true);
2608 struct snd_soc_dapm_path *path;
2609 int count = 0;
2610
2611 if (!source) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002612 dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n",
Mark Brownbf3a9e12011-06-13 16:42:29 +01002613 route->source);
2614 return -ENODEV;
2615 }
2616
2617 if (!sink) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002618 dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n",
Mark Brownbf3a9e12011-06-13 16:42:29 +01002619 route->sink);
2620 return -ENODEV;
2621 }
2622
2623 if (route->control || route->connected)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002624 dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n",
Mark Brownbf3a9e12011-06-13 16:42:29 +01002625 route->source, route->sink);
2626
2627 list_for_each_entry(path, &source->sinks, list_source) {
2628 if (path->sink == sink) {
2629 path->weak = 1;
2630 count++;
2631 }
2632 }
2633
2634 if (count == 0)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002635 dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n",
Mark Brownbf3a9e12011-06-13 16:42:29 +01002636 route->source, route->sink);
2637 if (count > 1)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002638 dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n",
Mark Brownbf3a9e12011-06-13 16:42:29 +01002639 count, route->source, route->sink);
2640
2641 return 0;
2642}
2643
2644/**
2645 * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak
2646 * @dapm: DAPM context
2647 * @route: audio routes
2648 * @num: number of routes
2649 *
2650 * Mark existing routes matching those specified in the passed array
2651 * as being weak, meaning that they are ignored for the purpose of
2652 * power decisions. The main intended use case is for sidetone paths
2653 * which couple audio between other independent paths if they are both
2654 * active in order to make the combination work better at the user
2655 * level but which aren't intended to be "used".
2656 *
2657 * Note that CODEC drivers should not use this as sidetone type paths
2658 * can frequently also be used as bypass paths.
2659 */
2660int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm,
2661 const struct snd_soc_dapm_route *route, int num)
2662{
2663 int i, err;
2664 int ret = 0;
2665
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00002666 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
Mark Brownbf3a9e12011-06-13 16:42:29 +01002667 for (i = 0; i < num; i++) {
2668 err = snd_soc_dapm_weak_route(dapm, route);
2669 if (err)
2670 ret = err;
2671 route++;
2672 }
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00002673 mutex_unlock(&dapm->card->dapm_mutex);
Mark Brownbf3a9e12011-06-13 16:42:29 +01002674
2675 return ret;
2676}
2677EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes);
2678
Mark Brown105f1c22008-05-13 14:52:19 +02002679/**
Richard Purdie2b97eab2006-10-06 18:32:18 +02002680 * snd_soc_dapm_new_widgets - add new dapm widgets
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002681 * @dapm: DAPM context
Richard Purdie2b97eab2006-10-06 18:32:18 +02002682 *
2683 * Checks the codec for any new dapm widgets and creates them if found.
2684 *
2685 * Returns 0 for success.
2686 */
Lars-Peter Clausen824ef822013-08-27 15:51:01 +02002687int snd_soc_dapm_new_widgets(struct snd_soc_card *card)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002688{
2689 struct snd_soc_dapm_widget *w;
Mark Brownb66a70d2011-02-09 18:04:11 +00002690 unsigned int val;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002691
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02002692 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00002693
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02002694 list_for_each_entry(w, &card->widgets, list)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002695 {
2696 if (w->new)
2697 continue;
2698
Stephen Warrenfad59882011-04-28 17:37:59 -06002699 if (w->num_kcontrols) {
2700 w->kcontrols = kzalloc(w->num_kcontrols *
2701 sizeof(struct snd_kcontrol *),
2702 GFP_KERNEL);
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00002703 if (!w->kcontrols) {
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02002704 mutex_unlock(&card->dapm_mutex);
Stephen Warrenfad59882011-04-28 17:37:59 -06002705 return -ENOMEM;
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00002706 }
Stephen Warrenfad59882011-04-28 17:37:59 -06002707 }
2708
Richard Purdie2b97eab2006-10-06 18:32:18 +02002709 switch(w->id) {
2710 case snd_soc_dapm_switch:
2711 case snd_soc_dapm_mixer:
Ian Moltonca9c1aa2009-01-06 20:11:51 +00002712 case snd_soc_dapm_mixer_named_ctl:
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +02002713 dapm_new_mixer(w);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002714 break;
2715 case snd_soc_dapm_mux:
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +02002716 dapm_new_mux(w);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002717 break;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002718 case snd_soc_dapm_pga:
Olaya, Margaritad88429a2010-12-10 21:11:44 -06002719 case snd_soc_dapm_out_drv:
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +02002720 dapm_new_pga(w);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002721 break;
Mark Brown7ca3a182011-10-08 14:04:50 +01002722 default:
Richard Purdie2b97eab2006-10-06 18:32:18 +02002723 break;
2724 }
Mark Brownb66a70d2011-02-09 18:04:11 +00002725
2726 /* Read the initial power state from the device */
2727 if (w->reg >= 0) {
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002728 soc_dapm_read(w->dapm, w->reg, &val);
Arun Shamanna Lakshmif7d3c172014-01-14 15:31:54 -08002729 val = val >> w->shift;
Lars-Peter Clausende9ba982013-07-29 17:14:01 +02002730 val &= w->mask;
2731 if (val == w->on_val)
Mark Brownb66a70d2011-02-09 18:04:11 +00002732 w->power = 1;
2733 }
2734
Richard Purdie2b97eab2006-10-06 18:32:18 +02002735 w->new = 1;
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +02002736
Mark Brown7508b122011-10-05 12:09:12 +01002737 dapm_mark_dirty(w, "new widget");
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +02002738 dapm_debugfs_add_widget(w);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002739 }
2740
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02002741 dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP);
2742 mutex_unlock(&card->dapm_mutex);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002743 return 0;
2744}
2745EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets);
2746
2747/**
2748 * snd_soc_dapm_get_volsw - dapm mixer get callback
2749 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002750 * @ucontrol: control element information
Richard Purdie2b97eab2006-10-06 18:32:18 +02002751 *
2752 * Callback to get the value of a dapm mixer control.
2753 *
2754 * Returns 0 for success.
2755 */
2756int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
2757 struct snd_ctl_elem_value *ucontrol)
2758{
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002759 struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
2760 struct snd_soc_card *card = dapm->card;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002761 struct soc_mixer_control *mc =
2762 (struct soc_mixer_control *)kcontrol->private_value;
Lars-Peter Clausen249ce132013-10-06 13:43:49 +02002763 int reg = mc->reg;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002764 unsigned int shift = mc->shift;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002765 int max = mc->max;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002766 unsigned int mask = (1 << fls(max)) - 1;
Benoît Thébaudeauda602ab2012-07-03 20:18:17 +02002767 unsigned int invert = mc->invert;
Lars-Peter Clausen57295072013-08-05 11:27:31 +02002768 unsigned int val;
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002769 int ret = 0;
Benoît Thébaudeauda602ab2012-07-03 20:18:17 +02002770
2771 if (snd_soc_volsw_is_stereo(mc))
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002772 dev_warn(dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002773 "ASoC: Control '%s' is stereo, which is not supported\n",
Benoît Thébaudeauda602ab2012-07-03 20:18:17 +02002774 kcontrol->id.name);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002775
Lars-Peter Clausen57295072013-08-05 11:27:31 +02002776 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002777 if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) {
2778 ret = soc_dapm_read(dapm, reg, &val);
2779 val = (val >> shift) & mask;
2780 } else {
Lars-Peter Clausen57295072013-08-05 11:27:31 +02002781 val = dapm_kcontrol_get_value(kcontrol);
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002782 }
Lars-Peter Clausen57295072013-08-05 11:27:31 +02002783 mutex_unlock(&card->dapm_mutex);
2784
Benoît Thébaudeauda602ab2012-07-03 20:18:17 +02002785 if (invert)
Lars-Peter Clausen57295072013-08-05 11:27:31 +02002786 ucontrol->value.integer.value[0] = max - val;
2787 else
2788 ucontrol->value.integer.value[0] = val;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002789
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002790 return ret;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002791}
2792EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw);
2793
2794/**
2795 * snd_soc_dapm_put_volsw - dapm mixer set callback
2796 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002797 * @ucontrol: control element information
Richard Purdie2b97eab2006-10-06 18:32:18 +02002798 *
2799 * Callback to set the value of a dapm mixer control.
2800 *
2801 * Returns 0 for success.
2802 */
2803int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
2804 struct snd_ctl_elem_value *ucontrol)
2805{
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002806 struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
2807 struct snd_soc_card *card = dapm->card;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002808 struct soc_mixer_control *mc =
2809 (struct soc_mixer_control *)kcontrol->private_value;
Lars-Peter Clausen249ce132013-10-06 13:43:49 +02002810 int reg = mc->reg;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002811 unsigned int shift = mc->shift;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002812 int max = mc->max;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002813 unsigned int mask = (1 << fls(max)) - 1;
2814 unsigned int invert = mc->invert;
Stephen Warrene9cf7042011-01-27 14:54:05 -07002815 unsigned int val;
Jarkko Nikula18626c72014-06-09 14:20:29 +03002816 int connect, change, reg_change = 0;
Mark Brown97404f22010-12-14 16:13:57 +00002817 struct snd_soc_dapm_update update;
Nenghua Cao52765972013-12-13 20:13:49 +08002818 int ret = 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002819
Benoît Thébaudeauda602ab2012-07-03 20:18:17 +02002820 if (snd_soc_volsw_is_stereo(mc))
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002821 dev_warn(dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002822 "ASoC: Control '%s' is stereo, which is not supported\n",
Benoît Thébaudeauda602ab2012-07-03 20:18:17 +02002823 kcontrol->id.name);
2824
Richard Purdie2b97eab2006-10-06 18:32:18 +02002825 val = (ucontrol->value.integer.value[0] & mask);
Benoît Thébaudeau8a720712012-06-18 22:41:28 +02002826 connect = !!val;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002827
2828 if (invert)
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002829 val = max - val;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002830
Liam Girdwood3cd04342012-03-09 12:02:08 +00002831 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002832
Lars-Peter Clausen249ce132013-10-06 13:43:49 +02002833 change = dapm_kcontrol_set_value(kcontrol, val);
Mark Brown283375c2009-12-07 18:09:03 +00002834
Jarkko Nikula18626c72014-06-09 14:20:29 +03002835 if (reg != SND_SOC_NOPM) {
2836 mask = mask << shift;
2837 val = val << shift;
Lars-Peter Clausenc9e065c2014-05-04 19:17:05 +02002838
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002839 reg_change = soc_dapm_test_bits(dapm, reg, mask, val);
Jarkko Nikula18626c72014-06-09 14:20:29 +03002840 }
2841
2842 if (change || reg_change) {
2843 if (reg_change) {
2844 update.kcontrol = kcontrol;
2845 update.reg = reg;
2846 update.mask = mask;
2847 update.val = val;
2848 card->update = &update;
Lars-Peter Clausen249ce132013-10-06 13:43:49 +02002849 }
Jarkko Nikula18626c72014-06-09 14:20:29 +03002850 change |= reg_change;
Mark Brown97404f22010-12-14 16:13:57 +00002851
Nenghua Cao52765972013-12-13 20:13:49 +08002852 ret = soc_dapm_mixer_update_power(card, kcontrol, connect);
Mark Brown97404f22010-12-14 16:13:57 +00002853
Lars-Peter Clausen564c65042013-07-29 17:13:55 +02002854 card->update = NULL;
Mark Brown283375c2009-12-07 18:09:03 +00002855 }
2856
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00002857 mutex_unlock(&card->dapm_mutex);
Nenghua Cao52765972013-12-13 20:13:49 +08002858
2859 if (ret > 0)
2860 soc_dpcm_runtime_update(card);
2861
Lars-Peter Clausen56a67832013-07-24 15:27:35 +02002862 return change;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002863}
2864EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw);
2865
2866/**
2867 * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback
2868 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002869 * @ucontrol: control element information
Richard Purdie2b97eab2006-10-06 18:32:18 +02002870 *
2871 * Callback to get the value of a dapm enumerated double mixer control.
2872 *
2873 * Returns 0 for success.
2874 */
2875int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol,
2876 struct snd_ctl_elem_value *ucontrol)
2877{
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002878 struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002879 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Lars-Peter Clausen3727b492014-02-28 08:31:04 +01002880 unsigned int reg_val, val;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002881
Geert Uytterhoeven69128312014-08-08 17:29:35 +02002882 if (e->reg != SND_SOC_NOPM) {
2883 int ret = soc_dapm_read(dapm, e->reg, &reg_val);
2884 if (ret)
2885 return ret;
2886 } else {
Lars-Peter Clausen236aaa62014-02-28 08:31:11 +01002887 reg_val = dapm_kcontrol_get_value(kcontrol);
Geert Uytterhoeven69128312014-08-08 17:29:35 +02002888 }
Lars-Peter Clausen236aaa62014-02-28 08:31:11 +01002889
Lars-Peter Clausen3727b492014-02-28 08:31:04 +01002890 val = (reg_val >> e->shift_l) & e->mask;
2891 ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val);
2892 if (e->shift_l != e->shift_r) {
2893 val = (reg_val >> e->shift_r) & e->mask;
2894 val = snd_soc_enum_val_to_item(e, val);
2895 ucontrol->value.enumerated.item[1] = val;
2896 }
Richard Purdie2b97eab2006-10-06 18:32:18 +02002897
Geert Uytterhoeven69128312014-08-08 17:29:35 +02002898 return 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002899}
2900EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double);
2901
2902/**
2903 * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback
2904 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002905 * @ucontrol: control element information
Richard Purdie2b97eab2006-10-06 18:32:18 +02002906 *
2907 * Callback to set the value of a dapm enumerated double mixer control.
2908 *
2909 * Returns 0 for success.
2910 */
2911int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
2912 struct snd_ctl_elem_value *ucontrol)
2913{
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002914 struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
2915 struct snd_soc_card *card = dapm->card;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002916 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Lars-Peter Clausen3727b492014-02-28 08:31:04 +01002917 unsigned int *item = ucontrol->value.enumerated.item;
2918 unsigned int val, change;
Lars-Peter Clausen86767b72012-09-14 13:57:27 +02002919 unsigned int mask;
Mark Brown97404f22010-12-14 16:13:57 +00002920 struct snd_soc_dapm_update update;
Nenghua Cao52765972013-12-13 20:13:49 +08002921 int ret = 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002922
Lars-Peter Clausen3727b492014-02-28 08:31:04 +01002923 if (item[0] >= e->items)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002924 return -EINVAL;
Lars-Peter Clausen3727b492014-02-28 08:31:04 +01002925
2926 val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
Lars-Peter Clausen86767b72012-09-14 13:57:27 +02002927 mask = e->mask << e->shift_l;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002928 if (e->shift_l != e->shift_r) {
Lars-Peter Clausen3727b492014-02-28 08:31:04 +01002929 if (item[1] > e->items)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002930 return -EINVAL;
Lars-Peter Clausen3727b492014-02-28 08:31:04 +01002931 val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l;
Lars-Peter Clausen86767b72012-09-14 13:57:27 +02002932 mask |= e->mask << e->shift_r;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002933 }
2934
Liam Girdwood3cd04342012-03-09 12:02:08 +00002935 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Stephen Warrenfafd2172011-04-28 17:38:00 -06002936
Lars-Peter Clausen236aaa62014-02-28 08:31:11 +01002937 if (e->reg != SND_SOC_NOPM)
Lars-Peter Clausence0fc932014-06-16 18:13:06 +02002938 change = soc_dapm_test_bits(dapm, e->reg, mask, val);
Lars-Peter Clausen236aaa62014-02-28 08:31:11 +01002939 else
2940 change = dapm_kcontrol_set_value(kcontrol, val);
Mark Brown97404f22010-12-14 16:13:57 +00002941
Richard Purdie2b97eab2006-10-06 18:32:18 +02002942 if (change) {
Lars-Peter Clausen236aaa62014-02-28 08:31:11 +01002943 if (e->reg != SND_SOC_NOPM) {
2944 update.kcontrol = kcontrol;
2945 update.reg = e->reg;
2946 update.mask = mask;
2947 update.val = val;
2948 card->update = &update;
2949 }
Mark Brown3a655772009-10-05 17:23:30 +01002950
Lars-Peter Clausen3727b492014-02-28 08:31:04 +01002951 ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e);
Mark Brown1642e3d2009-10-05 16:24:26 +01002952
Lars-Peter Clausen564c65042013-07-29 17:13:55 +02002953 card->update = NULL;
Stephen Warrenfafd2172011-04-28 17:38:00 -06002954 }
2955
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00002956 mutex_unlock(&card->dapm_mutex);
Nenghua Cao52765972013-12-13 20:13:49 +08002957
2958 if (ret > 0)
2959 soc_dpcm_runtime_update(card);
2960
Mark Brown97404f22010-12-14 16:13:57 +00002961 return change;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002962}
2963EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double);
2964
2965/**
Mark Brown8b37dbd2009-02-28 21:14:20 +00002966 * snd_soc_dapm_info_pin_switch - Info for a pin switch
2967 *
2968 * @kcontrol: mixer control
2969 * @uinfo: control element information
2970 *
2971 * Callback to provide information about a pin switch control.
2972 */
2973int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
2974 struct snd_ctl_elem_info *uinfo)
2975{
2976 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2977 uinfo->count = 1;
2978 uinfo->value.integer.min = 0;
2979 uinfo->value.integer.max = 1;
2980
2981 return 0;
2982}
2983EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch);
2984
2985/**
2986 * snd_soc_dapm_get_pin_switch - Get information for a pin switch
2987 *
2988 * @kcontrol: mixer control
2989 * @ucontrol: Value
2990 */
2991int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
2992 struct snd_ctl_elem_value *ucontrol)
2993{
Mark Brown48a8c392012-02-14 17:11:15 -08002994 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
Mark Brown8b37dbd2009-02-28 21:14:20 +00002995 const char *pin = (const char *)kcontrol->private_value;
2996
Liam Girdwood3cd04342012-03-09 12:02:08 +00002997 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Mark Brown8b37dbd2009-02-28 21:14:20 +00002998
2999 ucontrol->value.integer.value[0] =
Mark Brown48a8c392012-02-14 17:11:15 -08003000 snd_soc_dapm_get_pin_status(&card->dapm, pin);
Mark Brown8b37dbd2009-02-28 21:14:20 +00003001
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00003002 mutex_unlock(&card->dapm_mutex);
Mark Brown8b37dbd2009-02-28 21:14:20 +00003003
3004 return 0;
3005}
3006EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch);
3007
3008/**
3009 * snd_soc_dapm_put_pin_switch - Set information for a pin switch
3010 *
3011 * @kcontrol: mixer control
3012 * @ucontrol: Value
3013 */
3014int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
3015 struct snd_ctl_elem_value *ucontrol)
3016{
Mark Brown48a8c392012-02-14 17:11:15 -08003017 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
Mark Brown8b37dbd2009-02-28 21:14:20 +00003018 const char *pin = (const char *)kcontrol->private_value;
3019
Mark Brown8b37dbd2009-02-28 21:14:20 +00003020 if (ucontrol->value.integer.value[0])
Mark Brown48a8c392012-02-14 17:11:15 -08003021 snd_soc_dapm_enable_pin(&card->dapm, pin);
Mark Brown8b37dbd2009-02-28 21:14:20 +00003022 else
Mark Brown48a8c392012-02-14 17:11:15 -08003023 snd_soc_dapm_disable_pin(&card->dapm, pin);
Mark Brown8b37dbd2009-02-28 21:14:20 +00003024
Mark Brown48a8c392012-02-14 17:11:15 -08003025 snd_soc_dapm_sync(&card->dapm);
Mark Brown8b37dbd2009-02-28 21:14:20 +00003026 return 0;
3027}
3028EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch);
3029
Mark Brown5ba06fc2012-02-16 11:07:13 -08003030static struct snd_soc_dapm_widget *
3031snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
3032 const struct snd_soc_dapm_widget *widget)
Richard Purdie2b97eab2006-10-06 18:32:18 +02003033{
3034 struct snd_soc_dapm_widget *w;
Lars-Peter Clausen94f99c82014-06-16 18:13:01 +02003035 const char *prefix;
Mark Brown62ea8742012-01-21 21:14:48 +00003036 int ret;
Richard Purdie2b97eab2006-10-06 18:32:18 +02003037
3038 if ((w = dapm_cnew_widget(widget)) == NULL)
Mark Brown5ba06fc2012-02-16 11:07:13 -08003039 return NULL;
Richard Purdie2b97eab2006-10-06 18:32:18 +02003040
Mark Brown62ea8742012-01-21 21:14:48 +00003041 switch (w->id) {
3042 case snd_soc_dapm_regulator_supply:
Liam Girdwooda3cc0562012-03-09 17:20:16 +00003043 w->regulator = devm_regulator_get(dapm->dev, w->name);
3044 if (IS_ERR(w->regulator)) {
3045 ret = PTR_ERR(w->regulator);
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003046 dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n",
Mark Brown62ea8742012-01-21 21:14:48 +00003047 w->name, ret);
Mark Brown5ba06fc2012-02-16 11:07:13 -08003048 return NULL;
Mark Brown62ea8742012-01-21 21:14:48 +00003049 }
Mark Brown8784c772013-01-10 19:33:47 +00003050
Lars-Peter Clausende9ba982013-07-29 17:14:01 +02003051 if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) {
Mark Brown8784c772013-01-10 19:33:47 +00003052 ret = regulator_allow_bypass(w->regulator, true);
3053 if (ret != 0)
3054 dev_warn(w->dapm->dev,
Charles Keepax30686c32014-02-18 16:05:27 +00003055 "ASoC: Failed to bypass %s: %d\n",
Mark Brown8784c772013-01-10 19:33:47 +00003056 w->name, ret);
3057 }
Mark Brown62ea8742012-01-21 21:14:48 +00003058 break;
Ola Liljad7e7eb92012-05-24 15:26:25 +02003059 case snd_soc_dapm_clock_supply:
Mark Brown165961e2012-06-05 10:44:23 +01003060#ifdef CONFIG_CLKDEV_LOOKUP
Mark Brown695594f12012-06-04 08:14:13 +01003061 w->clk = devm_clk_get(dapm->dev, w->name);
Ola Liljad7e7eb92012-05-24 15:26:25 +02003062 if (IS_ERR(w->clk)) {
3063 ret = PTR_ERR(w->clk);
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003064 dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n",
Ola Liljad7e7eb92012-05-24 15:26:25 +02003065 w->name, ret);
3066 return NULL;
3067 }
Mark Brownec029952012-06-04 08:16:20 +01003068#else
3069 return NULL;
3070#endif
Ola Liljad7e7eb92012-05-24 15:26:25 +02003071 break;
Mark Brown62ea8742012-01-21 21:14:48 +00003072 default:
3073 break;
3074 }
Richard Purdie2b97eab2006-10-06 18:32:18 +02003075
Lars-Peter Clausen94f99c82014-06-16 18:13:01 +02003076 prefix = soc_dapm_prefix(dapm);
3077 if (prefix)
3078 w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name);
Lars-Peter Clausen2b581072013-05-14 11:05:32 +02003079 else
3080 w->name = kasprintf(GFP_KERNEL, "%s", widget->name);
3081
Jarkko Nikulaead9b912010-11-13 20:40:44 +02003082 if (w->name == NULL) {
3083 kfree(w);
Mark Brown5ba06fc2012-02-16 11:07:13 -08003084 return NULL;
Jarkko Nikulaead9b912010-11-13 20:40:44 +02003085 }
Jarkko Nikulaead9b912010-11-13 20:40:44 +02003086
Mark Brown7ca3a182011-10-08 14:04:50 +01003087 switch (w->id) {
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02003088 case snd_soc_dapm_mic:
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02003089 w->is_source = 1;
3090 w->power_check = dapm_generic_check_power;
3091 break;
Lars-Peter Clausen86d75002014-12-21 11:05:44 +01003092 case snd_soc_dapm_input:
3093 if (!dapm->card->fully_routed)
3094 w->is_source = 1;
3095 w->power_check = dapm_generic_check_power;
3096 break;
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02003097 case snd_soc_dapm_spk:
3098 case snd_soc_dapm_hp:
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02003099 w->is_sink = 1;
3100 w->power_check = dapm_generic_check_power;
3101 break;
Lars-Peter Clausen86d75002014-12-21 11:05:44 +01003102 case snd_soc_dapm_output:
3103 if (!dapm->card->fully_routed)
3104 w->is_sink = 1;
3105 w->power_check = dapm_generic_check_power;
3106 break;
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02003107 case snd_soc_dapm_vmid:
3108 case snd_soc_dapm_siggen:
3109 w->is_source = 1;
3110 w->power_check = dapm_always_on_check_power;
3111 break;
3112 case snd_soc_dapm_mux:
Mark Brown7ca3a182011-10-08 14:04:50 +01003113 case snd_soc_dapm_switch:
3114 case snd_soc_dapm_mixer:
3115 case snd_soc_dapm_mixer_named_ctl:
Mark Brown63c69a62013-07-18 22:03:01 +01003116 case snd_soc_dapm_adc:
3117 case snd_soc_dapm_aif_out:
3118 case snd_soc_dapm_dac:
3119 case snd_soc_dapm_aif_in:
Mark Brown7ca3a182011-10-08 14:04:50 +01003120 case snd_soc_dapm_pga:
3121 case snd_soc_dapm_out_drv:
Mark Brown7ca3a182011-10-08 14:04:50 +01003122 case snd_soc_dapm_micbias:
Mark Brown7ca3a182011-10-08 14:04:50 +01003123 case snd_soc_dapm_line:
Mark Brownc74184e2012-04-04 22:12:09 +01003124 case snd_soc_dapm_dai_link:
Lars-Peter Clausencdef2ad2014-10-20 19:36:38 +02003125 case snd_soc_dapm_dai_out:
3126 case snd_soc_dapm_dai_in:
Mark Brown7ca3a182011-10-08 14:04:50 +01003127 w->power_check = dapm_generic_check_power;
3128 break;
3129 case snd_soc_dapm_supply:
Mark Brown62ea8742012-01-21 21:14:48 +00003130 case snd_soc_dapm_regulator_supply:
Ola Liljad7e7eb92012-05-24 15:26:25 +02003131 case snd_soc_dapm_clock_supply:
Lars-Peter Clausen57295072013-08-05 11:27:31 +02003132 case snd_soc_dapm_kcontrol:
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02003133 w->is_supply = 1;
Mark Brown7ca3a182011-10-08 14:04:50 +01003134 w->power_check = dapm_supply_check_power;
3135 break;
3136 default:
3137 w->power_check = dapm_always_on_check_power;
3138 break;
3139 }
3140
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003141 w->dapm = dapm;
Richard Purdie2b97eab2006-10-06 18:32:18 +02003142 INIT_LIST_HEAD(&w->sources);
3143 INIT_LIST_HEAD(&w->sinks);
3144 INIT_LIST_HEAD(&w->list);
Mark Browndb432b42011-10-03 21:06:40 +01003145 INIT_LIST_HEAD(&w->dirty);
Jarkko Nikula97c866d2010-12-14 12:18:31 +02003146 list_add(&w->list, &dapm->card->widgets);
Richard Purdie2b97eab2006-10-06 18:32:18 +02003147
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +02003148 w->inputs = -1;
3149 w->outputs = -1;
3150
Richard Purdie2b97eab2006-10-06 18:32:18 +02003151 /* machine layer set ups unconnected pins and insertions */
3152 w->connected = 1;
Mark Brown5ba06fc2012-02-16 11:07:13 -08003153 return w;
Richard Purdie2b97eab2006-10-06 18:32:18 +02003154}
Richard Purdie2b97eab2006-10-06 18:32:18 +02003155
3156/**
Mark Brown4ba13272008-05-13 14:51:19 +02003157 * snd_soc_dapm_new_controls - create new dapm controls
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003158 * @dapm: DAPM context
Mark Brown4ba13272008-05-13 14:51:19 +02003159 * @widget: widget array
3160 * @num: number of widgets
3161 *
3162 * Creates new DAPM controls based upon the templates.
3163 *
3164 * Returns 0 for success else error.
3165 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003166int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
Mark Brown4ba13272008-05-13 14:51:19 +02003167 const struct snd_soc_dapm_widget *widget,
3168 int num)
3169{
Mark Brown5ba06fc2012-02-16 11:07:13 -08003170 struct snd_soc_dapm_widget *w;
3171 int i;
Dan Carpenter60884c22012-04-13 22:25:43 +03003172 int ret = 0;
Mark Brown4ba13272008-05-13 14:51:19 +02003173
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00003174 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
Mark Brown4ba13272008-05-13 14:51:19 +02003175 for (i = 0; i < num; i++) {
Mark Brown5ba06fc2012-02-16 11:07:13 -08003176 w = snd_soc_dapm_new_control(dapm, widget);
3177 if (!w) {
Jarkko Nikulaf7d41ae2010-11-09 14:40:27 +02003178 dev_err(dapm->dev,
Mark Brown5ba06fc2012-02-16 11:07:13 -08003179 "ASoC: Failed to create DAPM control %s\n",
3180 widget->name);
Dan Carpenter60884c22012-04-13 22:25:43 +03003181 ret = -ENOMEM;
3182 break;
Mark Brownb8b33cb2008-12-18 11:19:30 +00003183 }
Mark Brown4ba13272008-05-13 14:51:19 +02003184 widget++;
3185 }
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00003186 mutex_unlock(&dapm->card->dapm_mutex);
Dan Carpenter60884c22012-04-13 22:25:43 +03003187 return ret;
Mark Brown4ba13272008-05-13 14:51:19 +02003188}
3189EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls);
3190
Mark Brownc74184e2012-04-04 22:12:09 +01003191static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
3192 struct snd_kcontrol *kcontrol, int event)
3193{
3194 struct snd_soc_dapm_path *source_p, *sink_p;
3195 struct snd_soc_dai *source, *sink;
3196 const struct snd_soc_pcm_stream *config = w->params;
3197 struct snd_pcm_substream substream;
Mark Brown9747cec2012-04-26 19:12:21 +01003198 struct snd_pcm_hw_params *params = NULL;
Mark Brownc74184e2012-04-04 22:12:09 +01003199 u64 fmt;
3200 int ret;
3201
Takashi Iwaibf4edea2013-11-07 18:38:47 +01003202 if (WARN_ON(!config) ||
3203 WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks)))
3204 return -EINVAL;
Mark Brownc74184e2012-04-04 22:12:09 +01003205
3206 /* We only support a single source and sink, pick the first */
3207 source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path,
3208 list_sink);
3209 sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path,
3210 list_source);
3211
Takashi Iwaibf4edea2013-11-07 18:38:47 +01003212 if (WARN_ON(!source_p || !sink_p) ||
3213 WARN_ON(!sink_p->source || !source_p->sink) ||
3214 WARN_ON(!source_p->source || !sink_p->sink))
3215 return -EINVAL;
Mark Brownc74184e2012-04-04 22:12:09 +01003216
3217 source = source_p->source->priv;
3218 sink = sink_p->sink->priv;
3219
3220 /* Be a little careful as we don't want to overflow the mask array */
3221 if (config->formats) {
3222 fmt = ffs(config->formats) - 1;
3223 } else {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003224 dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n",
Mark Brownc74184e2012-04-04 22:12:09 +01003225 config->formats);
3226 fmt = 0;
3227 }
3228
3229 /* Currently very limited parameter selection */
Mark Brown9747cec2012-04-26 19:12:21 +01003230 params = kzalloc(sizeof(*params), GFP_KERNEL);
3231 if (!params) {
3232 ret = -ENOMEM;
3233 goto out;
3234 }
3235 snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt);
Mark Brownc74184e2012-04-04 22:12:09 +01003236
Mark Brown9747cec2012-04-26 19:12:21 +01003237 hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min =
Mark Brownc74184e2012-04-04 22:12:09 +01003238 config->rate_min;
Mark Brown9747cec2012-04-26 19:12:21 +01003239 hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max =
Mark Brownc74184e2012-04-04 22:12:09 +01003240 config->rate_max;
3241
Mark Brown9747cec2012-04-26 19:12:21 +01003242 hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min
Mark Brownc74184e2012-04-04 22:12:09 +01003243 = config->channels_min;
Mark Brown9747cec2012-04-26 19:12:21 +01003244 hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max
Mark Brownc74184e2012-04-04 22:12:09 +01003245 = config->channels_max;
3246
3247 memset(&substream, 0, sizeof(substream));
3248
3249 switch (event) {
3250 case SND_SOC_DAPM_PRE_PMU:
Benoit Cousson93e69582014-07-08 23:19:38 +02003251 substream.stream = SNDRV_PCM_STREAM_CAPTURE;
3252 ret = soc_dai_hw_params(&substream, params, source);
3253 if (ret < 0)
3254 goto out;
Mark Brownc74184e2012-04-04 22:12:09 +01003255
Benoit Cousson93e69582014-07-08 23:19:38 +02003256 substream.stream = SNDRV_PCM_STREAM_PLAYBACK;
3257 ret = soc_dai_hw_params(&substream, params, sink);
3258 if (ret < 0)
3259 goto out;
Mark Brownc74184e2012-04-04 22:12:09 +01003260 break;
3261
3262 case SND_SOC_DAPM_POST_PMU:
Mark Brownda183962013-02-06 15:44:07 +00003263 ret = snd_soc_dai_digital_mute(sink, 0,
3264 SNDRV_PCM_STREAM_PLAYBACK);
Mark Brownc74184e2012-04-04 22:12:09 +01003265 if (ret != 0 && ret != -ENOTSUPP)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003266 dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret);
Mark Brown9747cec2012-04-26 19:12:21 +01003267 ret = 0;
Mark Brownc74184e2012-04-04 22:12:09 +01003268 break;
3269
3270 case SND_SOC_DAPM_PRE_PMD:
Mark Brownda183962013-02-06 15:44:07 +00003271 ret = snd_soc_dai_digital_mute(sink, 1,
3272 SNDRV_PCM_STREAM_PLAYBACK);
Mark Brownc74184e2012-04-04 22:12:09 +01003273 if (ret != 0 && ret != -ENOTSUPP)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003274 dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret);
Mark Brown9747cec2012-04-26 19:12:21 +01003275 ret = 0;
Mark Brownc74184e2012-04-04 22:12:09 +01003276 break;
3277
3278 default:
Takashi Iwaia6ed0602013-11-06 11:07:19 +01003279 WARN(1, "Unknown event %d\n", event);
Mark Brownc74184e2012-04-04 22:12:09 +01003280 return -EINVAL;
3281 }
3282
Mark Brown9747cec2012-04-26 19:12:21 +01003283out:
3284 kfree(params);
3285 return ret;
Mark Brownc74184e2012-04-04 22:12:09 +01003286}
3287
3288int snd_soc_dapm_new_pcm(struct snd_soc_card *card,
3289 const struct snd_soc_pcm_stream *params,
3290 struct snd_soc_dapm_widget *source,
3291 struct snd_soc_dapm_widget *sink)
3292{
Mark Brownc74184e2012-04-04 22:12:09 +01003293 struct snd_soc_dapm_widget template;
3294 struct snd_soc_dapm_widget *w;
3295 size_t len;
3296 char *link_name;
Lars-Peter Clausenfe838972014-05-07 16:20:27 +02003297 int ret;
Mark Brownc74184e2012-04-04 22:12:09 +01003298
3299 len = strlen(source->name) + strlen(sink->name) + 2;
3300 link_name = devm_kzalloc(card->dev, len, GFP_KERNEL);
3301 if (!link_name)
3302 return -ENOMEM;
3303 snprintf(link_name, len, "%s-%s", source->name, sink->name);
3304
3305 memset(&template, 0, sizeof(template));
3306 template.reg = SND_SOC_NOPM;
3307 template.id = snd_soc_dapm_dai_link;
3308 template.name = link_name;
3309 template.event = snd_soc_dai_link_event;
3310 template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
3311 SND_SOC_DAPM_PRE_PMD;
3312
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003313 dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name);
Mark Brownc74184e2012-04-04 22:12:09 +01003314
3315 w = snd_soc_dapm_new_control(&card->dapm, &template);
3316 if (!w) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003317 dev_err(card->dev, "ASoC: Failed to create %s widget\n",
Mark Brownc74184e2012-04-04 22:12:09 +01003318 link_name);
3319 return -ENOMEM;
3320 }
3321
3322 w->params = params;
3323
Lars-Peter Clausenfe838972014-05-07 16:20:27 +02003324 ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL);
3325 if (ret)
3326 return ret;
3327 return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL);
Mark Brownc74184e2012-04-04 22:12:09 +01003328}
3329
Mark Brown888df392012-02-16 19:37:51 -08003330int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
3331 struct snd_soc_dai *dai)
Richard Purdie2b97eab2006-10-06 18:32:18 +02003332{
Mark Brown888df392012-02-16 19:37:51 -08003333 struct snd_soc_dapm_widget template;
Richard Purdie2b97eab2006-10-06 18:32:18 +02003334 struct snd_soc_dapm_widget *w;
3335
Mark Brown888df392012-02-16 19:37:51 -08003336 WARN_ON(dapm->dev != dai->dev);
3337
3338 memset(&template, 0, sizeof(template));
3339 template.reg = SND_SOC_NOPM;
3340
3341 if (dai->driver->playback.stream_name) {
Mark Brown46162742013-06-05 19:36:11 +01003342 template.id = snd_soc_dapm_dai_in;
Mark Brown888df392012-02-16 19:37:51 -08003343 template.name = dai->driver->playback.stream_name;
3344 template.sname = dai->driver->playback.stream_name;
3345
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003346 dev_dbg(dai->dev, "ASoC: adding %s widget\n",
Mark Brown888df392012-02-16 19:37:51 -08003347 template.name);
3348
3349 w = snd_soc_dapm_new_control(dapm, &template);
3350 if (!w) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003351 dev_err(dapm->dev, "ASoC: Failed to create %s widget\n",
Mark Brown888df392012-02-16 19:37:51 -08003352 dai->driver->playback.stream_name);
Takashi Iwai298402a2013-10-28 14:21:50 +01003353 return -ENOMEM;
Mark Brown888df392012-02-16 19:37:51 -08003354 }
3355
3356 w->priv = dai;
3357 dai->playback_widget = w;
3358 }
3359
3360 if (dai->driver->capture.stream_name) {
Mark Brown46162742013-06-05 19:36:11 +01003361 template.id = snd_soc_dapm_dai_out;
Mark Brown888df392012-02-16 19:37:51 -08003362 template.name = dai->driver->capture.stream_name;
3363 template.sname = dai->driver->capture.stream_name;
3364
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003365 dev_dbg(dai->dev, "ASoC: adding %s widget\n",
Mark Brown888df392012-02-16 19:37:51 -08003366 template.name);
3367
3368 w = snd_soc_dapm_new_control(dapm, &template);
3369 if (!w) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003370 dev_err(dapm->dev, "ASoC: Failed to create %s widget\n",
Mark Brown888df392012-02-16 19:37:51 -08003371 dai->driver->capture.stream_name);
Takashi Iwai298402a2013-10-28 14:21:50 +01003372 return -ENOMEM;
Mark Brown888df392012-02-16 19:37:51 -08003373 }
3374
3375 w->priv = dai;
3376 dai->capture_widget = w;
3377 }
3378
3379 return 0;
3380}
3381
3382int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card)
3383{
3384 struct snd_soc_dapm_widget *dai_w, *w;
Lars-Peter Clausen0f9bd7b2014-05-07 16:20:28 +02003385 struct snd_soc_dapm_widget *src, *sink;
Mark Brown888df392012-02-16 19:37:51 -08003386 struct snd_soc_dai *dai;
Mark Brown888df392012-02-16 19:37:51 -08003387
3388 /* For each DAI widget... */
3389 list_for_each_entry(dai_w, &card->widgets, list) {
Mark Brown46162742013-06-05 19:36:11 +01003390 switch (dai_w->id) {
3391 case snd_soc_dapm_dai_in:
3392 case snd_soc_dapm_dai_out:
3393 break;
3394 default:
Richard Purdie2b97eab2006-10-06 18:32:18 +02003395 continue;
Mark Brown46162742013-06-05 19:36:11 +01003396 }
Mark Brown888df392012-02-16 19:37:51 -08003397
3398 dai = dai_w->priv;
3399
3400 /* ...find all widgets with the same stream and link them */
3401 list_for_each_entry(w, &card->widgets, list) {
3402 if (w->dapm != dai_w->dapm)
3403 continue;
3404
Mark Brown46162742013-06-05 19:36:11 +01003405 switch (w->id) {
3406 case snd_soc_dapm_dai_in:
3407 case snd_soc_dapm_dai_out:
Mark Brown888df392012-02-16 19:37:51 -08003408 continue;
Mark Brown46162742013-06-05 19:36:11 +01003409 default:
3410 break;
3411 }
Mark Brown888df392012-02-16 19:37:51 -08003412
Russell King19c2c5f2013-08-04 20:24:03 +01003413 if (!w->sname || !strstr(w->sname, dai_w->name))
Mark Brown888df392012-02-16 19:37:51 -08003414 continue;
3415
Lars-Peter Clausen0f9bd7b2014-05-07 16:20:28 +02003416 if (dai_w->id == snd_soc_dapm_dai_in) {
3417 src = dai_w;
3418 sink = w;
3419 } else {
3420 src = w;
3421 sink = dai_w;
Mark Brown888df392012-02-16 19:37:51 -08003422 }
Lars-Peter Clausen0f9bd7b2014-05-07 16:20:28 +02003423 dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name);
3424 snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL);
Richard Purdie2b97eab2006-10-06 18:32:18 +02003425 }
3426 }
Richard Purdie2b97eab2006-10-06 18:32:18 +02003427
Mark Brown888df392012-02-16 19:37:51 -08003428 return 0;
3429}
Liam Girdwood64a648c2011-07-25 11:15:15 +01003430
Benoit Cousson44ba2642014-07-08 23:19:36 +02003431static void dapm_connect_dai_link_widgets(struct snd_soc_card *card,
3432 struct snd_soc_pcm_runtime *rtd)
Liam Girdwoodb893ea52014-01-08 10:40:19 +00003433{
Benoit Cousson44ba2642014-07-08 23:19:36 +02003434 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
Lars-Peter Clausen9887c202014-05-07 16:20:26 +02003435 struct snd_soc_dapm_widget *sink, *source;
Liam Girdwoodb893ea52014-01-08 10:40:19 +00003436 int i;
3437
Benoit Cousson44ba2642014-07-08 23:19:36 +02003438 for (i = 0; i < rtd->num_codecs; i++) {
3439 struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
Liam Girdwoodb893ea52014-01-08 10:40:19 +00003440
3441 /* there is no point in connecting BE DAI links with dummies */
3442 if (snd_soc_dai_is_dummy(codec_dai) ||
3443 snd_soc_dai_is_dummy(cpu_dai))
3444 continue;
3445
3446 /* connect BE DAI playback if widgets are valid */
3447 if (codec_dai->playback_widget && cpu_dai->playback_widget) {
Lars-Peter Clausen9887c202014-05-07 16:20:26 +02003448 source = cpu_dai->playback_widget;
3449 sink = codec_dai->playback_widget;
Liam Girdwoodb893ea52014-01-08 10:40:19 +00003450 dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n",
Lars-Peter Clausenf4333202014-06-16 18:13:02 +02003451 cpu_dai->component->name, source->name,
3452 codec_dai->component->name, sink->name);
Liam Girdwoodb893ea52014-01-08 10:40:19 +00003453
Lars-Peter Clausen9887c202014-05-07 16:20:26 +02003454 snd_soc_dapm_add_path(&card->dapm, source, sink,
3455 NULL, NULL);
Liam Girdwoodb893ea52014-01-08 10:40:19 +00003456 }
3457
3458 /* connect BE DAI capture if widgets are valid */
3459 if (codec_dai->capture_widget && cpu_dai->capture_widget) {
Lars-Peter Clausen9887c202014-05-07 16:20:26 +02003460 source = codec_dai->capture_widget;
3461 sink = cpu_dai->capture_widget;
Liam Girdwoodb893ea52014-01-08 10:40:19 +00003462 dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n",
Lars-Peter Clausenf4333202014-06-16 18:13:02 +02003463 codec_dai->component->name, source->name,
3464 cpu_dai->component->name, sink->name);
Liam Girdwoodb893ea52014-01-08 10:40:19 +00003465
Lars-Peter Clausen9887c202014-05-07 16:20:26 +02003466 snd_soc_dapm_add_path(&card->dapm, source, sink,
3467 NULL, NULL);
Liam Girdwoodb893ea52014-01-08 10:40:19 +00003468 }
Liam Girdwoodb893ea52014-01-08 10:40:19 +00003469 }
3470}
Liam Girdwoodb893ea52014-01-08 10:40:19 +00003471
Lars-Peter Clausenc471fdd2014-04-29 14:51:22 +02003472static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream,
3473 int event)
3474{
3475 struct snd_soc_dapm_widget *w;
3476
3477 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
3478 w = dai->playback_widget;
3479 else
3480 w = dai->capture_widget;
3481
3482 if (w) {
3483 dapm_mark_dirty(w, "stream event");
3484
3485 switch (event) {
3486 case SND_SOC_DAPM_STREAM_START:
3487 w->active = 1;
3488 break;
3489 case SND_SOC_DAPM_STREAM_STOP:
3490 w->active = 0;
3491 break;
3492 case SND_SOC_DAPM_STREAM_SUSPEND:
3493 case SND_SOC_DAPM_STREAM_RESUME:
3494 case SND_SOC_DAPM_STREAM_PAUSE_PUSH:
3495 case SND_SOC_DAPM_STREAM_PAUSE_RELEASE:
3496 break;
3497 }
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02003498
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +02003499 if (w->id == snd_soc_dapm_dai_in) {
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02003500 w->is_source = w->active;
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +02003501 dapm_widget_invalidate_input_paths(w);
3502 } else {
Lars-Peter Clausen6dd98b02014-10-25 17:41:59 +02003503 w->is_sink = w->active;
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +02003504 dapm_widget_invalidate_output_paths(w);
3505 }
Liam Girdwoodb893ea52014-01-08 10:40:19 +00003506 }
3507}
3508
Benoit Cousson44ba2642014-07-08 23:19:36 +02003509void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card)
3510{
3511 struct snd_soc_pcm_runtime *rtd = card->rtd;
3512 int i;
3513
3514 /* for each BE DAI link... */
3515 for (i = 0; i < card->num_rtd; i++) {
3516 rtd = &card->rtd[i];
3517
3518 /*
3519 * dynamic FE links have no fixed DAI mapping.
3520 * CODEC<->CODEC links have no direct connection.
3521 */
3522 if (rtd->dai_link->dynamic || rtd->dai_link->params)
3523 continue;
3524
3525 dapm_connect_dai_link_widgets(card, rtd);
3526 }
3527}
3528
Liam Girdwoodd9b09512012-03-07 16:32:59 +00003529static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
3530 int event)
Richard Purdie2b97eab2006-10-06 18:32:18 +02003531{
Benoit Cousson44ba2642014-07-08 23:19:36 +02003532 int i;
3533
Lars-Peter Clausenc471fdd2014-04-29 14:51:22 +02003534 soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event);
Benoit Cousson44ba2642014-07-08 23:19:36 +02003535 for (i = 0; i < rtd->num_codecs; i++)
3536 soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event);
Liam Girdwoodd9b09512012-03-07 16:32:59 +00003537
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02003538 dapm_power_widgets(rtd->card, event);
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003539}
3540
3541/**
3542 * snd_soc_dapm_stream_event - send a stream event to the dapm core
3543 * @rtd: PCM runtime data
3544 * @stream: stream name
3545 * @event: stream event
3546 *
3547 * Sends a stream event to the dapm core. The core then makes any
3548 * necessary widget power changes.
3549 *
3550 * Returns 0 for success else error.
3551 */
Liam Girdwoodd9b09512012-03-07 16:32:59 +00003552void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
3553 int event)
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003554{
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00003555 struct snd_soc_card *card = rtd->card;
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003556
Liam Girdwood3cd04342012-03-09 12:02:08 +00003557 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Liam Girdwoodd9b09512012-03-07 16:32:59 +00003558 soc_dapm_stream_event(rtd, stream, event);
Liam Girdwooda73fb2df2012-03-07 10:38:26 +00003559 mutex_unlock(&card->dapm_mutex);
Richard Purdie2b97eab2006-10-06 18:32:18 +02003560}
Richard Purdie2b97eab2006-10-06 18:32:18 +02003561
3562/**
Charles Keepax11391102014-02-18 15:22:14 +00003563 * snd_soc_dapm_enable_pin_unlocked - enable pin.
3564 * @dapm: DAPM context
3565 * @pin: pin name
3566 *
3567 * Enables input/output pin and its parents or children widgets iff there is
3568 * a valid audio route and active audio stream.
3569 *
3570 * Requires external locking.
3571 *
3572 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
3573 * do any widget power switching.
3574 */
3575int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm,
3576 const char *pin)
3577{
3578 return snd_soc_dapm_set_pin(dapm, pin, 1);
3579}
3580EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked);
3581
3582/**
Liam Girdwooda5302182008-07-07 13:35:17 +01003583 * snd_soc_dapm_enable_pin - enable pin.
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003584 * @dapm: DAPM context
Liam Girdwooda5302182008-07-07 13:35:17 +01003585 * @pin: pin name
Richard Purdie2b97eab2006-10-06 18:32:18 +02003586 *
Mark Brown74b8f952009-06-06 11:26:15 +01003587 * Enables input/output pin and its parents or children widgets iff there is
Liam Girdwooda5302182008-07-07 13:35:17 +01003588 * a valid audio route and active audio stream.
Charles Keepax11391102014-02-18 15:22:14 +00003589 *
Liam Girdwooda5302182008-07-07 13:35:17 +01003590 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
3591 * do any widget power switching.
Richard Purdie2b97eab2006-10-06 18:32:18 +02003592 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003593int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin)
Richard Purdie2b97eab2006-10-06 18:32:18 +02003594{
Charles Keepax11391102014-02-18 15:22:14 +00003595 int ret;
3596
3597 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
3598
3599 ret = snd_soc_dapm_set_pin(dapm, pin, 1);
3600
3601 mutex_unlock(&dapm->card->dapm_mutex);
3602
3603 return ret;
Richard Purdie2b97eab2006-10-06 18:32:18 +02003604}
Liam Girdwooda5302182008-07-07 13:35:17 +01003605EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin);
Richard Purdie2b97eab2006-10-06 18:32:18 +02003606
3607/**
Charles Keepax11391102014-02-18 15:22:14 +00003608 * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled
3609 * @dapm: DAPM context
3610 * @pin: pin name
3611 *
3612 * Enables input/output pin regardless of any other state. This is
3613 * intended for use with microphone bias supplies used in microphone
3614 * jack detection.
3615 *
3616 * Requires external locking.
3617 *
3618 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
3619 * do any widget power switching.
3620 */
3621int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm,
3622 const char *pin)
3623{
3624 struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true);
3625
3626 if (!w) {
3627 dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin);
3628 return -EINVAL;
3629 }
3630
3631 dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin);
Lars-Peter Clausen92a99ea2014-10-25 17:42:03 +02003632 if (!w->connected) {
3633 /*
3634 * w->force does not affect the number of input or output paths,
3635 * so we only have to recheck if w->connected is changed
3636 */
3637 dapm_widget_invalidate_input_paths(w);
3638 dapm_widget_invalidate_output_paths(w);
3639 w->connected = 1;
3640 }
Charles Keepax11391102014-02-18 15:22:14 +00003641 w->force = 1;
3642 dapm_mark_dirty(w, "force enable");
3643
3644 return 0;
3645}
3646EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked);
3647
3648/**
Mark Brownda341832010-03-15 19:23:37 +00003649 * snd_soc_dapm_force_enable_pin - force a pin to be enabled
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003650 * @dapm: DAPM context
Mark Brownda341832010-03-15 19:23:37 +00003651 * @pin: pin name
3652 *
3653 * Enables input/output pin regardless of any other state. This is
3654 * intended for use with microphone bias supplies used in microphone
3655 * jack detection.
3656 *
3657 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
3658 * do any widget power switching.
3659 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003660int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm,
3661 const char *pin)
Mark Brownda341832010-03-15 19:23:37 +00003662{
Charles Keepax11391102014-02-18 15:22:14 +00003663 int ret;
Mark Brownda341832010-03-15 19:23:37 +00003664
Charles Keepax11391102014-02-18 15:22:14 +00003665 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Mark Brownda341832010-03-15 19:23:37 +00003666
Charles Keepax11391102014-02-18 15:22:14 +00003667 ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin);
Mark Brown0d867332011-04-06 11:38:14 +09003668
Charles Keepax11391102014-02-18 15:22:14 +00003669 mutex_unlock(&dapm->card->dapm_mutex);
3670
3671 return ret;
Mark Brownda341832010-03-15 19:23:37 +00003672}
3673EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin);
3674
3675/**
Charles Keepax11391102014-02-18 15:22:14 +00003676 * snd_soc_dapm_disable_pin_unlocked - disable pin.
3677 * @dapm: DAPM context
3678 * @pin: pin name
3679 *
3680 * Disables input/output pin and its parents or children widgets.
3681 *
3682 * Requires external locking.
3683 *
3684 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
3685 * do any widget power switching.
3686 */
3687int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm,
3688 const char *pin)
3689{
3690 return snd_soc_dapm_set_pin(dapm, pin, 0);
3691}
3692EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked);
3693
3694/**
Liam Girdwooda5302182008-07-07 13:35:17 +01003695 * snd_soc_dapm_disable_pin - disable pin.
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003696 * @dapm: DAPM context
Liam Girdwooda5302182008-07-07 13:35:17 +01003697 * @pin: pin name
Graeme Gregoryeeec12b2008-04-30 19:27:40 +02003698 *
Mark Brown74b8f952009-06-06 11:26:15 +01003699 * Disables input/output pin and its parents or children widgets.
Charles Keepax11391102014-02-18 15:22:14 +00003700 *
Liam Girdwooda5302182008-07-07 13:35:17 +01003701 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
3702 * do any widget power switching.
Graeme Gregoryeeec12b2008-04-30 19:27:40 +02003703 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003704int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm,
3705 const char *pin)
Liam Girdwooda5302182008-07-07 13:35:17 +01003706{
Charles Keepax11391102014-02-18 15:22:14 +00003707 int ret;
3708
3709 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
3710
3711 ret = snd_soc_dapm_set_pin(dapm, pin, 0);
3712
3713 mutex_unlock(&dapm->card->dapm_mutex);
3714
3715 return ret;
Liam Girdwooda5302182008-07-07 13:35:17 +01003716}
3717EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin);
3718
3719/**
Charles Keepax11391102014-02-18 15:22:14 +00003720 * snd_soc_dapm_nc_pin_unlocked - permanently disable pin.
3721 * @dapm: DAPM context
3722 * @pin: pin name
3723 *
3724 * Marks the specified pin as being not connected, disabling it along
3725 * any parent or child widgets. At present this is identical to
3726 * snd_soc_dapm_disable_pin() but in future it will be extended to do
3727 * additional things such as disabling controls which only affect
3728 * paths through the pin.
3729 *
3730 * Requires external locking.
3731 *
3732 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
3733 * do any widget power switching.
3734 */
3735int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm,
3736 const char *pin)
3737{
3738 return snd_soc_dapm_set_pin(dapm, pin, 0);
3739}
3740EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked);
3741
3742/**
Mark Brown5817b522008-09-24 11:23:11 +01003743 * snd_soc_dapm_nc_pin - permanently disable pin.
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003744 * @dapm: DAPM context
Mark Brown5817b522008-09-24 11:23:11 +01003745 * @pin: pin name
3746 *
3747 * Marks the specified pin as being not connected, disabling it along
3748 * any parent or child widgets. At present this is identical to
3749 * snd_soc_dapm_disable_pin() but in future it will be extended to do
3750 * additional things such as disabling controls which only affect
3751 * paths through the pin.
3752 *
3753 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
3754 * do any widget power switching.
3755 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003756int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin)
Mark Brown5817b522008-09-24 11:23:11 +01003757{
Charles Keepax11391102014-02-18 15:22:14 +00003758 int ret;
3759
3760 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
3761
3762 ret = snd_soc_dapm_set_pin(dapm, pin, 0);
3763
3764 mutex_unlock(&dapm->card->dapm_mutex);
3765
3766 return ret;
Mark Brown5817b522008-09-24 11:23:11 +01003767}
3768EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin);
3769
3770/**
Liam Girdwooda5302182008-07-07 13:35:17 +01003771 * snd_soc_dapm_get_pin_status - get audio pin status
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003772 * @dapm: DAPM context
Liam Girdwooda5302182008-07-07 13:35:17 +01003773 * @pin: audio signal pin endpoint (or start point)
3774 *
3775 * Get audio pin status - connected or disconnected.
3776 *
3777 * Returns 1 for connected otherwise 0.
3778 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003779int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm,
3780 const char *pin)
Graeme Gregoryeeec12b2008-04-30 19:27:40 +02003781{
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003782 struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true);
Graeme Gregoryeeec12b2008-04-30 19:27:40 +02003783
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003784 if (w)
3785 return w->connected;
Stephen Warrena68b38a2011-04-19 15:25:11 -06003786
Graeme Gregoryeeec12b2008-04-30 19:27:40 +02003787 return 0;
3788}
Liam Girdwooda5302182008-07-07 13:35:17 +01003789EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status);
Graeme Gregoryeeec12b2008-04-30 19:27:40 +02003790
3791/**
Mark Brown1547aba2010-05-07 21:11:40 +01003792 * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003793 * @dapm: DAPM context
Mark Brown1547aba2010-05-07 21:11:40 +01003794 * @pin: audio signal pin endpoint (or start point)
3795 *
3796 * Mark the given endpoint or pin as ignoring suspend. When the
3797 * system is disabled a path between two endpoints flagged as ignoring
3798 * suspend will not be disabled. The path must already be enabled via
3799 * normal means at suspend time, it will not be turned on if it was not
3800 * already enabled.
3801 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003802int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm,
3803 const char *pin)
Mark Brown1547aba2010-05-07 21:11:40 +01003804{
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003805 struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false);
Mark Brown1547aba2010-05-07 21:11:40 +01003806
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003807 if (!w) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003808 dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin);
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003809 return -EINVAL;
Mark Brown1547aba2010-05-07 21:11:40 +01003810 }
3811
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003812 w->ignore_suspend = 1;
3813
3814 return 0;
Mark Brown1547aba2010-05-07 21:11:40 +01003815}
3816EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend);
3817
Lars-Peter Clausencdc45082014-10-20 19:36:33 +02003818/**
Richard Purdie2b97eab2006-10-06 18:32:18 +02003819 * snd_soc_dapm_free - free dapm resources
Peter Ujfalusi728a5222011-08-26 16:33:52 +03003820 * @dapm: DAPM context
Richard Purdie2b97eab2006-10-06 18:32:18 +02003821 *
3822 * Free all dapm widgets and resources.
3823 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003824void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm)
Richard Purdie2b97eab2006-10-06 18:32:18 +02003825{
Lars-Peter Clausen6c45e122011-04-30 19:45:50 +02003826 dapm_debugfs_cleanup(dapm);
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003827 dapm_free_widgets(dapm);
Jarkko Nikula7be31be82010-12-14 12:18:32 +02003828 list_del(&dapm->list);
Richard Purdie2b97eab2006-10-06 18:32:18 +02003829}
3830EXPORT_SYMBOL_GPL(snd_soc_dapm_free);
3831
Xiang Xiao57996352014-03-02 00:04:02 +08003832static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm)
Mark Brown51737472009-06-22 13:16:51 +01003833{
Liam Girdwood01005a72012-07-06 16:57:05 +01003834 struct snd_soc_card *card = dapm->card;
Mark Brown51737472009-06-22 13:16:51 +01003835 struct snd_soc_dapm_widget *w;
3836 LIST_HEAD(down_list);
3837 int powerdown = 0;
3838
Liam Girdwood01005a72012-07-06 16:57:05 +01003839 mutex_lock(&card->dapm_mutex);
3840
Jarkko Nikula97c866d2010-12-14 12:18:31 +02003841 list_for_each_entry(w, &dapm->card->widgets, list) {
3842 if (w->dapm != dapm)
3843 continue;
Mark Brown51737472009-06-22 13:16:51 +01003844 if (w->power) {
Mark Brown828a8422011-01-15 13:14:30 +00003845 dapm_seq_insert(w, &down_list, false);
Mark Brownc2caa4d2009-06-26 15:36:56 +01003846 w->power = 0;
Mark Brown51737472009-06-22 13:16:51 +01003847 powerdown = 1;
3848 }
3849 }
3850
3851 /* If there were no widgets to power down we're already in
3852 * standby.
3853 */
3854 if (powerdown) {
Mark Brown7679e422012-02-22 15:52:56 +00003855 if (dapm->bias_level == SND_SOC_BIAS_ON)
3856 snd_soc_dapm_set_bias_level(dapm,
3857 SND_SOC_BIAS_PREPARE);
Lars-Peter Clausen95dd5cd2013-07-29 17:13:56 +02003858 dapm_seq_run(card, &down_list, 0, false);
Mark Brown7679e422012-02-22 15:52:56 +00003859 if (dapm->bias_level == SND_SOC_BIAS_PREPARE)
3860 snd_soc_dapm_set_bias_level(dapm,
3861 SND_SOC_BIAS_STANDBY);
Mark Brown51737472009-06-22 13:16:51 +01003862 }
Liam Girdwood01005a72012-07-06 16:57:05 +01003863
3864 mutex_unlock(&card->dapm_mutex);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003865}
Mark Brown51737472009-06-22 13:16:51 +01003866
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003867/*
3868 * snd_soc_dapm_shutdown - callback for system shutdown
3869 */
3870void snd_soc_dapm_shutdown(struct snd_soc_card *card)
3871{
Xiang Xiao57996352014-03-02 00:04:02 +08003872 struct snd_soc_dapm_context *dapm;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003873
Xiang Xiao57996352014-03-02 00:04:02 +08003874 list_for_each_entry(dapm, &card->dapm_list, list) {
Xiang Xiao17282ba2014-03-02 00:04:03 +08003875 if (dapm != &card->dapm) {
3876 soc_dapm_shutdown_dapm(dapm);
3877 if (dapm->bias_level == SND_SOC_BIAS_STANDBY)
3878 snd_soc_dapm_set_bias_level(dapm,
3879 SND_SOC_BIAS_OFF);
3880 }
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003881 }
Xiang Xiao17282ba2014-03-02 00:04:03 +08003882
3883 soc_dapm_shutdown_dapm(&card->dapm);
3884 if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY)
3885 snd_soc_dapm_set_bias_level(&card->dapm,
3886 SND_SOC_BIAS_OFF);
Mark Brown51737472009-06-22 13:16:51 +01003887}
3888
Richard Purdie2b97eab2006-10-06 18:32:18 +02003889/* Module information */
Liam Girdwoodd3311242008-10-12 13:17:36 +01003890MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
Richard Purdie2b97eab2006-10-06 18:32:18 +02003891MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC");
3892MODULE_LICENSE("GPL");